WHAT'S NEW 4/13/19 Harvey finds 321671*34^321671-1, completes base 35 to 350000. 3/29/19 Harvey finds 255134*34^255134-1 and 207422*35^207422-1. 3/20/19 Harvey completes base 87 to 350000, 93, 99, 105, 11, and 115 to 300000; finds 137150*105^137150-1, and 179286*105^179286-1; reserves bases 34 and 35 to 350000. 12/11/18 Harvey completes bases 33, 49, 51, 63, 69 and 75 to 350000; reserves bases 87 to 350000 and 93 to 300000. 9/25/18 Harvey finds 226400*63^226400-1. 9/23/18 Harvey completes bases 131, 157, 163, 173, 179, 191, 197, 223, 227,229, 233, 239 to 250000, found 199388*233^199388-1; reserves 33, 49, 51, and 63 to 350000. 6/26/18 Harvey completes base 97 to 300, bases 137, 139, 151 to 250000, no new primes found; reserves 157, 163 and 173, 100000 to 250000. 6/7/18 Harvey completes bases 101, 103, 107, and 109 to 250000, finds 122964*109^122964-1; reserves bases 127, 131 and 137 to 250000. 5/14/18 Harvey completes bases 40 and 83 to 300000, no primes found; reserves bases 101, 103, and 107 to 250000. 5/7/18 Harvey completes bases 71, 79, and 89 to 300000,reserves base 97 to 300000. 4/10/18 Harvey completes base 59 to 350000, and base 67 to 300000, reserves bases 79 and 83 to 300000, finds 209*79^209694-1. 4/10/2018 Harvey reserves base 40 to 300000. 4/9/2018 Harvey completes base 61, 200000 to 350000, reserves bases 71 and 73, 200000 to 300000. 3/27/18 Harvey completes base 47, 200k to 350k, found 249798*47^249798-1. 3/26/18 Harvey completes base 53, 200k to 350k, found 222452*53^222452-1. Reserves 59 and 61 to 350k, and 67 to 300k. 3/12/18 Harvey finds 249798*47^249798-1. 3/8/18 Harvey finds 222452*53^222452-1. 3/7/18 Harvey completes base 41, 200000 to 350000, finds 248100*41^248100-1; reserves bases 47 and 53 to 350000. 2/21/2018 Harvey completes base 37, 200000 to 350000, no new primes. 2/15/18 Harvey comletes base 31, 200000 to 400000, no new primes. 2/8/18 Harvey completes base 30 to 400000, found only 201038*30^201038-1; reserves bases 37 and 41 to 350000. 12/18/17 Harvey completes base 29 to 400000, no new primes; reserves base 31 to 400000. 12/6/17 Harvey completes base 28 to 400000, no new primes. 11/30/17 Harvey finds 201038*30^201038-1, continuing with base 30. 11/27/17 Harvey finds 272970*29^272970-1, 13th largest GW prime, continuing with base 29, base 30 reserved to 400000. 11/15/17 Harvey finds 237438*29^237438-1, continuing with base 29. 11/7/17 Harvey completes base 26, 200000 to 400000, no primes found; reserves base 29 to 400000. 10/20/17 Harvey completes base 24, 200000 to 400000, no primes found; reserves base 28 to 400000. 10/17/17 Harvey completes base 22, 200000 to 400000. 9/25/17 Harvey completes base 23, 200000 to 400000, no primes found. 9/22/17 Harvey finds 341351*22^341351-1, 10th largest GW prime. 8/15/17 Harvey reserves base 24 and base 26 to 400000. 7/1/17 Harvey reserves base 23 to 400000. 6/1/17 Harvey completes base 21 to 400000, no new primes, reserves base 22 to 400000. 12/14/16 Harvey completes base 20 to 400000, reserves base 21 200000 to 400000. 4/25/16 Pepi reports no primes base 77, from 200000 to 300000. 3/11/16 Gruenewald reports many bases from 122 to 136, and 152 to 200, checked to 100000, and many primes found. 3/11/16 Pepi reserves base 77 from 200000 to 300000. 2/9/16 Kapek reserves bases 164 and 165 from 25000 to 100000, and bases 91, 92, 93, 94, 95, 96 from 40000 to 100000. 2/8/16 Harvey finds 210129*20^210129-1, 273390 digits, completes bases 18 and 19 to 400000, base 20 reserved to 400000. 11/13/15 Harvey completes base 17 to 400000. 11/2/15 Harvey completes base 14 to 500000, reserves base 18 to 400000. 10/16/15 Harvey finds 433734*14^433734-1, 497121 digits, seventh largest. 10/6/15 Harvey completes base 15 to 500000, no new primes. 9/15/15 Harvey reserves base 17 to 400000. 8/21/15 Harvey finds 280524*19^280524-1; reserves base 19 to 400000. 6/18/15 Harvey completes base 12 to 500000, no new primes. 5/25/15 Rajala reports base 16384 checked from 200000 to 300000, no primes. 5/1/15 Batalov completes base 4 to 2000000, finds 1993191*4^1993191-1, largest known Generalized Woodall, 1200027 decimal digits. 4/28/15 Harvey completes base 10 to 500000, no primes; reserves bases 12, 14, and 15 to 500000. 4/?/15 Gruenewald finds 545082*5^545082-1, 14th largest, 381002 digits. 3/25/15 Harvey releases base 8, checked to 876000; reserves base 10 to 500000. 3/2/2015 Grunewald reports bases 51 through 63 to 200000, found 126315*60^126315-1 and 155820*61^155820-1, reserves bases 122 mthrough 136,except 125, 128, to 100000. 11/12/14 Koen reports 211 checked through 450000, no new primes. 10/31/14 Grunewald reports 47, 48, 50, 73 - 80, checked to 200000, found 42045*78^42045-1 and 81215*76^81215-1. Reserves 5 to 300000, and 51 - 63 to 200000. 8/23/2014 Rajala reports 16384 checked from 72000 to 200000, no new primes, continuing to 300000. 7/10/14 Batalov reports base 121 checked to 400000, base 243 to 400000, base 1331 to 146000 and continuing, base 7776 to 148000 and continuing, base 78125 to 140000. 7/10/14 Harvey reserves base 6 from 250000 to 1000000. 7/9/14 Serge Batalov reports base 9 checked from 250000 to 975000, no new primes. Found 130998*121^130998-1, 25th largest at 272846 decimal digits. 5/23/14 Tapio Rajala reserves 16384 from 72000 to 200000. 5/9/2014 Harvey completes base 4 to 1000000, no new primes. 4/29/14 Harvey completes base 512 to 222000, no new primes. 4/16/2014 Koen reports base 211 checked to 400000, no new primes, reserves same to 500000. 3/13/14 Gruenewald reports base 194 checked to 50000, finds 22238*194^22238-1; bases 1001-1023 checked to 50000, finds 12199*1022^12199-1, 24083*1014^24083-1, 29040*1022^29040-1; bases 711 thru 750(except 729) and 801 thru 990 checked from 10000 to 25000. All bases less than 1025 are now checked to at least 25000. 2/27/14 Hubbard reserves base 11, from 500000. 12/13/13 Harvey completes b=32 to 400000. 11/22/2013 Harvey completes b=64 to 333333, no new primes. 10/30/2013 Harvey completes b=128 to 286000, no new primes. 10/29/2013 Grunewald completes b=42, 44, 45, 46, and 72 to 200000, finds 131843*46^131843-1, 162452*45^162452-1, 172848*46^172848-1, and 193558*72^193558-1(18th largest); reserves b=47, 48,50, 73 - 80 to 200000, and 1001-1023 to 50000. 10/25/2013 Harvey completes b=256 to 250000, no new primes. 8/29/13 Harvey completes b=1024 to 200000, no new primes. 6/17/2013 Minovic finds 1035092*3^1035092-1, sixth largest. 6/8/2013 Batalov finds 113756*1000^113756-1 and 38502*529^38502-1, reserves bases 8, 169(above 300k), 529 and 1000. 5/21/13 Harvey completes b=39 to 200000, no new primes. 5/10/13 Harvey completes b=4096 to 166666, no primes. 5/6/13 Kapek releases b=2651. 5/5/13 Grunewald completes b=67, 68, 69, 71 to 200000, finds 76836*70^76836-1, 81224*70^81224-1, 119376*70^119376-1, and 166585*68^166585-1; reserves b=42, 44, 45, 46 and 72 to 200000. 5/4/13 Herranen completes b=118,119,120 to 40000, no primes. 5/2/13 Herranen completes b=108,110,111,112,114,115 to 40000, no primes. 4/30/13 Herranen completes b=102,109, 25000 to 40000, no primes. 4/30/13 Harvey completes b=16, 400000 to 500000, no primes. 4/29/13 Herranen completes b=106-107, 25k to 40k, no primes. 4/28/13 Herranen completes b=91 - 99 to 40000, no primes; b=101, 25000 to 40000, found 32234*101^32234-1. 4/27/13 Hubbard completes b=991 - 1000, to 50000, finds 48455*994^48455-1 & 43407*998^43407-1. Done with range. 4/19/13 Hubbard completes b=991 - 1000, to 25000, finds 15992*992^15992-1, 23748*992^23748-1, 16562*993^16562-1, & 16946*998^16946-1. Continuing on. 4/18/13 Herranen completes b=75 - 80, 26000 to 40000, no primes. 4/15/13 Hubbard reserves b=991 - 1000, k=10000 to 25000. 4/12/13 Ritschel completes b=601 - 700, 751 - 800, k=10000 to 25000; 181, 193, 199 to 250000, 227, 229, 241 to 200000; 46656 to 100000. 4/4/13 Herranen completes b=73,74, from 26000 to 40000, finds 36541*74^36541-1. 4/1/13 Herranen completes b=705-710, to 30000, finds 17195*708^17195-1, 23620*708^23620-1, 11845*710^11845-1, & 21199*710^21199-1. 3/22/13 Kapek reports 2651 checked to 200000, no new primes, continuing on. 3/19/13 Herranen completes b= 701-704 range =10001 - 30000, finds 10304*710^10304-1 2/17/13 Harvey completes b=38 to 200000, no new primes; reserves b=39 to k=200000 1/26/13 Kapek has checked 2651 to 100000, continuing on. 1/22/13 Kapek finds 13632*2651^13632-1, b=2651 checked to 60000, continuing. 1/16/13 Kapek reserves b=2651, 10000 to ? 1/3/13 Minovic reports: b=145 at n=265k, reserving to 300k b=149 at 255k, ditto b=169 at 210k, ditto b=171 at 220k, ditto b=216 at 200k, reserving to 250k b=625 at 220k, reserving to 300k b=2401 at 200k b=3125 at 115k, reserving to 200k b=6561 at 200k b=7776 at 100k b=15625 at 125k b=32768 at 120k, reserving to 200k b=46656 at 80k, reserving to 100k b=78125 at 100k b>625 are reserved by TOPS and reserves b=3 from 1M to 1.5M 12/10/2012 Harvey finds 179450*128^179450-1 and 241170*32^241170-1. 12/4/2012 Ritschel reports: b=25 is tested to n=500000. b=27 is tested to n=450000. b=36, 49 and 729 are all tested to n=300000. b=167 is tested to n=220000, prime for n=216290. I also continued my work on raising the overall n_max for all b<=600 to n=25000. 12/3/12 Harvey completes b=41 to 200000, no primes. 11/21/12 Harvey reserves b=4, & 8 to 2 million bits; and b=41 to 200000. 11/15/12 Harvey reserves b=16, 32, 64, 128, 256, 512 1024, 2048, & 4096 to 2 million bits. 11/14/12 Harvey completes b=37 to 200000, no new primes; reserves base 38 to 200000. 10/21/12 Ritschel finds 216290*167^216290-1, 480757 digits, 6th largest. 10/10/12 Ritschel reports b=25 is tested to 400000, b= 36, 49, 167, 175, 193, 199, 209, 217, 221, 223 treested to 200000, b=65536 to 100000; and bases below b=400 up to 25000. 10/9/12 Grunewald completes base 65 to 200000, no new primes; reserves bases 67, 68, 69, 70, 71 to 200000. 10/3/12 Ritschel finds 153222*223^153222-1, thirteenth largest at 359818 digits, only known base 223 generalized Woodall prime. 10/2/12 Harvey reserves base 37 to 200000. 9/28/12 Ritschel finds 154962*221^154962-1, tweflth largest at 363297, only known base 221 generalized Woodall prime. 8/30/12 Ritschel reports b=125 is tested to 300000; b=230 is tested to 100000 (releasing). b=19683 and b=59049 are both tested to n=150000. Found 178032*49^178032-1, reserves b=49 to 200000. Also reserves bases 25 and 36 to 200000. 8/21/12 Gruenewald completes bases 33 and 66 to 200000, reserves base 65 to 200000. 8/19/12 Harvey completes base 35 to 200000, no new primes. 6/18/2012 Harvey completes base 34 to 200000, reserves base 35 125000 to 200000. 5/31/12 Ritschel reports: Bases 167, 175, 193 and 199 are all tested up to n=150000. Bases 179 and 181 are tested up to n=200000. Bases 209, 217, 221, 223, 227, 229 and 241 are tested to n=150000. Base 230 is tested up to n=75000 ( two new primes for n=68466 and n=69020 ). 5/2/2012 Hubbard reports base 16 checked through 400000, no new primes. 4/25/2012 Koen reports base 211 checked to 350000, continuing to 400000. 4/13/2012 Koen reports new world record, 334310*211^334310-1, 777037 digits, only known base 211 GW prime. 4/8/2012 Minovic finds 163747*216^163747-1, 8th largest, 382266 digits. 3/28/2012 Koen reports base 211 checked through 325000, no primes, continung to 350000. 3/23/2012 Harvey reserves base 34 from 125000 to 200000. 3/22/2012 Minovic and Ritschel (TOPS) status report: 11 to 500000, 27 & 81 to 400000, 343 to 300000, 113 & 125 to 200000, 167 175 179 181 193 199 209 217 223 229 14641 16807 19638 & 59049 to 100000, 221 227 & 241 to 75000, 230 & 232 to 50000. Found 31478*232^31478-1, sole base 232 prime. 3/21/2012 Harvey completes base 68 to 125000. 3/18/2012 Ritschel finds 291732*343^291732-1, new largest, 739632 digits. 3/18/2012 Burt completes base 7 to 350000, reserves same to 500000. Also, completes base 83 to 200000. Finds 63260*82^63260-1 and 29838*90^29838-1. 3/9/2012 Harvey completes base 65 to 125000. 3/6/2012 Ritschel finds 178602*125^178602-1, seventh largest, 374518 digits. 3/1/2012 Harvey completes base 67 to 125000. 2/24/12 Harvey finds 93218*67^93218-1. 2/23/12 Koen reports base 211 completed to 300000, reserved to 325000. 2/21/12 Harvey reserves base 68 to 125000, finds 34989*68^34989-1. 2/17/12 Harvey finds 42962*65^42962-1. 2/16/12 Harvey reserves base 67 to 125000. 2/14/12 Harvey reserves base 65 to 125000, Miak Grunewald reserves bases 33 and 66 to 200000. 2/13/12 Harvey completes base 53 to 125000. 1/13/12 Harvey completes bases 55 and 56 to 125000. 1/12/12 Burt finds 148306*87^148306-1, 287648 digits, seventh largest. Status: 7 290000; 82 35000; 84 166000; 85 160000; 86 125000; 87 150000; 88 79000; 89 145000. 1/11/12 TOPS project status report: (base exponent) 11 400000; 27 300000; 81 300000; 113 195000; 179 100000; 181 100000; 1296 140000; 2187 200000, 3125 100000. 1/8/12 Ritschel finds 125134*1296^125134-1, 389492 digits, sixth largest. 1/5/12 Minovic reports finding 77588*153^77588-1, and updates bases 145, 153, 155, 171, 216, 625, 676, 729, 15625, 16807 and 32768 on behalf of the TOPS project. TOPS = "the other prime search" 12/22/11 Harvey completes base 8 to 400000. 12/21/11 Ritschel reports bases 125, 1296, and 1331 are checked to 100000, reserves bases 27, 125, 153, 155, 167, 171, 175, 179, 181, 193, & 199 together with Minovic. Minovic finds 48696*155^48696-1. 12/18/11 Koen completes base 211 to 225000, reserves same to 300000. 12/13/11 Harvey completes base 60 to 125000. 12/8/11 Ritschel finds 24482*1296^24482-1 and 50199*1296^50199-1, and completes bases 2167, 2401 and 6561 to 100000. 12/7/11 Harvey reserves base 56 to 125000; Hubbard reserves base 16 to 400000. 11/28/11 Harvey completes base 57 to 125000. 11/27/11 Ritschel reserves bases 27, and 125; completes bases 81 and 149 to 150000, and completes base 729 to 100000, reserves same to 200000; continuing with bases 11, and 113. Minovic completes base 149 to 150000, continuing to 200000; finds 32052*343^32052-1; base 32768 checked to 100000, continuing to 120000. 11/22/11 Burt reserves bases 82 through 90 to 200000. 11/20/11 Predrag Minovic finds 102498*625^102498-1, sixth largest. 11/16/11 Harvey completes bases 52 through 56 to 70000, reserves same to 125000. 11/14/11 Harvey finds 70726*57^70726-1. 11/13/11 Minovic and Ritschel reserve bases 216 and 343 to 130000, reserve bases 625 and 676 to 120000, find 11348*676^11348-1 11/10/11 Harvey completes base 58 to 125000, reserves base 57 to 125000. 11/4/11 Harvey finds 113309*58^113309-1, 18th largest. Ritschel checks base 113 to 100000, reserves same to 150000. Ritschel checks bases 118,119,120,122,123,125,126,127,129,130,131,132,133,134,135,136 to 25000, finds 12573*118^12573-1, 14513*120^14513-1, and 16674*129^16674-1. Hubbard completes base 3 to 1000000, no new primes. 11/1/11 Ritschel reports bases 94, 95, 96, and 98 are checked up to 26000, no new primes; bases 114 and 115 are checked to 25000, found 15892*114^15892-1. Minovic and Ritschel reserve bases 81, 145, and 149 to 150000. Ritschel reserves 729 to 100000, finds 12410*729^41210-1. 10/27/11 Minovic reports base 149 checked to 120500, continuing. Ritschel completes base 113 to 60000, no new primes, reserves same to 100000. Ritschel also reserves base 11, 250000 to 500000. Ritschel completes bases 109,110,111,and 112 to 25000, no new primes. 10/25/11 Ritschel reserves base 113 to 50000, finds 21950*113^21950-1. 10/16/11 Harvey completes base 61 to 125000, no new primes. 10/7/11 Harvey completes base 59 to 125000. no new primes. 9/29/11 Broadhurst completes bases 243, 324, 400 and 441 to 200000, no new primes. 9/22/11 Broadhurst completes base 361 to 200000, no new primes; reserves bases 400 and 441 to 200000. 9/20/11 Broadhurst finds 176660*324^176660-1, 3rd largest, 443519 digits. 9/17/11 Harvey completes base 24 to 200000, no new primes. 9/16/11 Hubbard completes base 3 to 750000, reserves same to 1000000. 9/14/11 Broadhurst completes bases 150, 169, 196, 225 & 289 to 200000, reserves bases 243 & 324 to 200000. 9/14/11 Broadhurst finds 89211*324^89211-1, 223974 digits, 14th largest. 9/12/11 Harvey completes base 62 to 125000, no new primes; reserves base 61 to 125000. 9/11/11 Broadhurst finds 182402*196^182402-1, 418118 digits, 3rd largest. 9/9/11 Harvey completes base 4 to 608749, releases base 4. 9/6/11 Broadhurst completes bases 143, 146, 148, 151 to 200000. 9/6/11 Broadhurst finds 92866*225^92866-1, 218443 digits, 13th largest. 9/6/11 Hubbard reports base 30 done to 200000, and bases 48, 49, and 50 completed to 125000. 9/2/11 Broadhurst finds 183192*144^183192-1, 395401 digits, third largest. 8/30/11 Broadhurst finds 32056*150^32056-1; reserves base 150 and 151. 8/27/11 Broadhurst finds 91688*146^91688-1, 13th largest; reserves bases 146, 147, and 148. 8/24/11 Broadhurst reports bases 140, 141, and 142 completed to 200000, no new primes, bases 143 and 144 reserved to 200000. 8/19/11 Hubbard finds 560750*3^560750-1, fourth largest, 267552 digits. 8/15/11 Harvey finds 36001*54^36001-1, and 36980*54^36980-1. 8/10/11 Hubbard finds 182461*30^182461-1, third largest, 269523 digits. 8/9/11 Harvey completes base 63 to 125000; reserves base 62 through 125000. 8/5/11 Hubbard reserves base 3, 403000 to 750000. 8/4/11 Hubbard finds 40194*50^40194-1 and 48051*50^48051-1. 8/3/11 Harvey completes bases 52 through 62 to 35000, no primes found; reserves same to 70000. 7/26/11 Broadhurst completes base 138 to 200000, no new primes found; reserves bases 142, 143, 144 to 200000, finds 25964*143^25964-1 and 43488*143^43488-1. 7/25/11 Broadhurst finds 93906* 140^93906-1, tenth largest GW prime. 7/24/11 Broadhurst finds 112894*141^112894-1, seventh largest GW prime. 7/24/11 Broadhurst completes bases 137 and 139 to 200000, no new primes; reserves bases 138,140, and 141 to 200000; finds 81117*140^81117-1, 19th largest, and 36358*141^36358-1. 7/19/11 Hubbard reserves bases 49, and 50, 27000 to 125000. 7/17/11 Hubbard finds 44844*48^44844-1, 75399 digits. 7/16/11 Hubbard completes base 47 to 125000, reserves base 48, 28000 to 125000. 7/15/11 Harvey finds 39170*63^39170-1. 7/13/11 Harvey completes base 28 to 200000, no new primes; reserves base 63, 27000 to 125000. 7/11/11 Harvey completes base 27 to 200000, no new primes. 7/7/11 Hubbard completes base 46 to 125000, finds 33092*46^33092-1; reserves base 47, 28000 to 125000. 6/27/11 Hubbard completes bases 29 and 31 to 200000, no primes. Harvey completes base 20 to 200000, no primes. 6/7/11 Hubbard reserves base 46, 28000 to 125000. 6/6/11 Harvey completes base 25 to 200000, no primes found. 5/31/11 Hubbard reserves bases 29, 30, and 31, 125000 to 200000. 5/27/11 Koen completes base 211 to 180000, no primes found, continuing to 200000. 5/24/11 Harvey completes base 17 to 250000, no primes found. 5/21/11 Harvey completes base 22 to 200000, no primes found; reserves base 28, 125000 to 200000. 5/19/11 Harvey reserves base 27, 125000 to 200000. 5/12/11 Harvey finds 134778*26^134778-1, 190713 digits, fifteenth largest. 5/5/11 Harvey completes base 18 to 250000, no primes found; reserves base 26 125000 to 200000. 5/5/11 Harvey completes base 23 to 200000, no primes found; reserves base 25 125000 to 200000. 4/28/11 Harvey reserves base 24 to 200000. 4/22/11 Harvey completes base 16 to 300000, no new primes. 4/15/11 Harvey completes base 21 to 200000, no primes found; reserves base 23 125000 to 200000. 4/12/11 Harvey completes base 15 to 250000. 4/11/11 Harvey completes base 14 to 250000, no new primes; reserves base 22 125000 to 200000. 3/22/11 Lau reports results of personal searches, several new primes discovered with bases and/or exponents greater than 10000, many others double checked. 3/16/11 Harvey reserves bases 20 and 21 to 200000. 3/9/11 Harvey completes base 9 to 250000. 3/6/11 Harvey reserves bases 17 and 18 to 250000. 3/3/11 Harvey completes base 10 to 250000, reserves base 16 to 300000. 2/25/11 Harvey completes base 11 to 250000, reserves base 14 from 200000 to 250000, & base 16 from 237384 to 300000. 2/24/11 Hubbard with Primegrid finds 404882*43^404882-1, 661368 digits, new record largest, and first base 43 GW prime. 2/23/11 Harvey finds 217606*15^217606+1, 3rd largest, 255930 digits. 2/11/11 Harvey reserves base 11 from 200000 to 250000. 1/31/11 Harvey completes base 7 to 250000, no primes found; reserves bases 9, 10 and 15 from 200000 to 250000. 12/29/10 Harvey completes base 6 to 250000, finds 249987*6^249987-1, 9th largest; reserves base 7 to 250000. 11/9/10 Harvey completes base 45 to 125000, reserves base 6 to 250000. 11/3/10 Harvey finds 118648*45^118648-1, 196156 digits, 7th largest. 10/31/10 Rodenkirch doublechecks 2000 < b < 4100, 2000 < n <= 4100, finds more new primes: 2206*702^2206-1 2372*807^2372-1 2708*722^2708-1 2712*315^2712-1 2713*2010^2713-1 2970*1762^2970-1 3324*807^3324-1 3645*174^3645-1 3662*385^3662-1 This is a complete doublecheck not just candidates with FFT size changes. 10/13/10 Rodenkirch doublechecks 1000 < b < 2000, 1000 < n < 2000, finds 35 new primes! This is a complete doublecheck not just candidates with FFT size changes. 10/9/10 Rodenkirch doublechecks b < 1000, n < 1000, finds new primes 570*283^570-1 and 962*215^962-1. This is a complete doublecheck not just candidates with FFT size changes. 10/8/10 Harvey completes base 45 to 100000, no new primes, reserves base 45 to 125000. 10/6/10 Recheck of base 3 done, no new primes found. 9/27/10 Recheck of base 6 done, no new primes found. 9/22/10 Harvey finishing up re-check of bases 3 and 6; Rodenkirch completes re-checking of everything else, no new primes found. 9/16/10 Rodenkirch finds 984*283^984-1 5702*91^5702-1 1142*255^1142-1 1022*274^1022-1 1037*292^1037-1 1213*320^1213-1 1147*326^1147-1 1403*336^1403-1 1284*360^1284-1 whilst re-checking due to PFGW FFT size selection bug. 9/15/10 PFGW bug established, need to upgrade to ver 3.3.6(or later); Rodenkirch rechecking problem results. 8/30/10 Harvey completes base 44 to 100000; reserves base 45 to 100000. 8/1/10 Koen reports base 42 checked to 170000, reserves base 211 through 100000. 7/26/10 Harvey completes base 37 to 125000, reserves base 44 to 100000. 7/12/10 Harvey completes base 36 to 125000; reserves base 37 100000 to 125000. 6/16/10 Harvey finds 109132*36^109132-1. 6/7/10 Rodenkirch completes base 14 to 200000, no new primes. 5/25/10 Hays finds 129840*104^129840-1 in connection with Primegrid, first base 104 prime, & 2nd largest GW. 5/20/10 Rodenkirch finds 147684*14^147684-1, base 14 checked to 150000 and continuing. 5/19/10 Domanov finds 94112*121^94112-1 in connection with Primegrid, first base 121 prime, & 6th largest GW. 5/18/10 Burt completes base 51 to 125000, no primes found. 5/17/10 Rodenkirch finds 131941*14^131941-1, completes bases 37, 38, and 39 to 100000. 5/10/10 Rodenkirch completes bases 37 and 38 to 100000; reserves base 14 to 200000. 5/3/10 Harvey finds 55835*36^55835-1. 5/3/10 Rodenkirch reports base 41 checked to 100000, no new primes. 4/30/10 Rodenkirch reserves bases 37, 38, and 39 to 100000. 4/30/10 Zhou reports base 12 checked to 249999, base 40 checked to 147000 and continuing, base 8192 checked to 151000 and continuing. 4/29/10 Soule reports base 98 checked to 54960. 4/29/10 Rodenkirch reserves base 41 to 100000. 4/27/10 Burt reserves base 51 and 52 both to 125000. 4/26/10 Harvey finds 124296*35^124296-1, sixth largest, completes base 35 to 125000, reserves base 36 to 120000. 3/16/10 Lei Zhou finds 39144*39143^39144-1, ninth largest, 179780 digits. 3/15/10 Harvey completes base 34 to 125000, reserves base 35 to 125000. 3/3/10 Harvey finds 102921*34^102921-1, tenth largest, 157627 digits. 2/8/10 Harvey completes base 33 through 125000, no new primes. 1/18/10 Koen reports base 42 checked to 150000, no new primes. 12/13/9 Lau finds the second largest known generalized Woodall prime,52592*52514^525921-1, with 248254 digits. 12/8/9 Vogel finds 563528*13^563528-1, first base 13 GW, & largest GW, 627745 digits, checked to 570008. 11/17/9 Harvey completes base 28 to 125000. 11/17/9 Harvey completes base 31 to 125000. 11/12/9 Primegrid has tested base 13 beyond 500000 and continues. 11/5/9 Harvey completes base 29 to 125000. 11/2/9 Harvey completes base 26 to 125000, reserves base 33, 50000 to 125000. 10/26/9 Harvey completes bases 24 and 27 to 125000. 10/19/9 Harvey finds 103444*27^103444-1, 9th largest. 10/16/9 Harvey completes base 25 to 125000. 10/11/9 Koen reports no new primes for base 42 through 125000, is continuing to 200000. 10/9/9 Harvey completes base 4, 282500 to 317900. 10/7/9 Harvey completes base 21 to 125000. 10/6/9 Harvey completes base 22 to 125000. 10/5/9 Harvey finds 39161*28^39161-1 and 34992*30^34992-1. 10/4/9 Harvey completes base 23, reserves bases 25, 26, 27, 28, 29, 30, 31 to 125000. 9/30/9 Harvey finds 64593*24^64593-1. 9/27/9 Harvey reserves base 24, 40000 to 125000, completes base 11 to 200000. 9/22/9 Harvey reserves base 23, 40000 to 125000. 9/15/9 Harvey completes base 20 to 125000, reserves base 22, 40000 to 125000. 9/13/9 Harvey reserves base 21, 40000 to 125000. 9/12/9 Harvey finds 293912*4^293912-1. 8/30/9 Harvey reserves base 20, 90000 to 125000. 8/10/9 Harvey reserves base 11, 100000 to 200000. 6/23/9 Harvey completes base 512 to 111000. 5/21/9 Harvey completes base 4096 to 83333. 5/17/9 Harvey completes base 2048 to 91000. 5/11/9 Harvey completes base 8192 to 72000, and base 16384 to 72000. 4/13/9 Harvey completes base 1024 to 100000. 4/7/9 Harvey finds 60205*8192^60205-1, third largest GW prime. 3/30/9 Koen checks base 42 to 100000, no new primes, continuing. 3/26/9 Harvey completes base 256 to 125000, no new primes. 3/13/9 Rodenkirch completes bases 15, 17, and 18 to 200000, no primes found. 3/2/9 Harvey completes base 128 to 145000, no primes found. 2/27/9 Minovic has checked base 149 through 112000, continuing to 133000, no primes. 2/23/9 Primegrid has checked base 13 through 300000 (Cullen also), and continues upward; still no prime known for base 13. 2/17/9 Harvey completes base 32 from 100k to 200k, no primes found. 2/12/9 Harvey completes base 8 from 183246 to 211899, no primes found. 2/4/9 Minovic reports base 149 done 33000 to 95000, no primes. Augustin reports base 20 checked to 90000, no new primes. 2/3/9 Harvey completes base 64 to 160000, no new primes. 1/31/9 Rodenkirch reports 92711*18^92711-1, 11th largest! 1/30/9 Koen reports base 42 checked to 84000, extends reservation to 150000. 1/26/9 Rodenkirch finds 162454*15^162454-1 (191066 digits) fourth largest! 1/18/9 Rodenkirch completes base 10 to 200000, no new primes. 1/3/9 Harvey reserves base 8 from 183245 to 211900. 1/3/9 Wolter completes base 4 to 532007, base 8 from 211900 to 300000, and base 16 to 237384, with no primes found. 12/25/8 Zhou finds 229918*12^229918-1, largest known Generalized Woodall prime. 12/14/8 Rodenkirch reports base 9 checked to 200000, no new primes; finds 45432*15^45432-1 and 43346*18^43346-1. 12/11/8 Rodenkirch reserves base 18 to 100000. 12/10/8 Minovic reports base 145 checked to 125000, no primes; Rodenkirch reserves bases 15 and 17 to 100000. 12/1/8 De Troia reports base 198 checked to 40000; base 201 to 60000; reserves base 204 to 60000; base 6869 checked to 40000. 11/30/8 Reynolds reports base 6 checked 100000 to 199700, base 7 from 100000 to 200000, found 145359*6^145359-1. 11/26/8 Rodenkirch completes base 9 to 140000, no new primes, continuing to 200000. 11/17/8 Predrag Minovic reports base 145 is checked to 115000, no primes, he's continuing to 125000; reserves 149 from 33000 to 80000. 11/11/8 Bryan Koen finds 65555*42^65555-1, 106417 digits, and is checking base 42 to 100000. 11/6/8 Platzer finds largest known Generalized Woodall prime 189620*19^189620-1, 242483 digits. 10/25/8 Platzer finds 2nd largest known Generalized Woodall prime: 146478*19^146478-1 10/15/8 Platzer finds 6th largest known Generalized Woodall prime: 91850*19^91850-1 , extends reservation to 20000, complete to 100000. 10/13/8 Platzer reserves base 19 to 100000. 9/26/8 Harvey reserves bases 32, 64, 128, and 256 to 10^9 bits. 9/25/8 Reynolds reports base 5 completed 200000 to 240000; base 6 checked to 157000, continuing; base 7 reserved for 100000 to 200000. 9/24/8 Minovic reports 145 checked to 90000, continuing to 100000. 9/14/8 Reynolds finds 145359*6^145359-1, seventh largest. 9/4/9 DeTroia finds 22742*204^22742-1 and 23407*204^23407-1, completes 201 to 40000, reserves to 60000. 8/28/8 De Troia finds 18952*204^18952-1, reserves bases 198, 201, 204 to 40000. 8/25/8 De Troia finds 33070*201^33070-1 is prime, 18th largest, 76172 digits. 8/20/8 Bedwell reports 10334*224^10334-1 and 10975*242^10975-1 are prime. He's checked bases 201 through 243 from 10000 to 12000. 8/20/8 Reynolds reports base 5 checked from 106000 to 200000, reserves base 5 from 200000 to 240000, and base 6 from 100000 to 199700. 8/15/8 Minovic reports base 145 checked up to 71000, continuing. 8/1/8 Bedwell reports base 1963 checked to 50000, base 1965 to 20000, found 10080*1965^10080-1, as noted below. 7/30/8 Minovic reports base 145 checked to 38600, reserves same to 100000. 6/30/8 Rodenkirch completes bases 2000 through 2999 up to 10000. 6/24/8 Minovic reports base 13 is checked to 252039. 4/24/8 Harvey completes bases 10 and 11 to 100000, no primes found. 3/27/8 Rodenkirch completes bases 3000 through 3999 up to 10000, lots of new primes! 3/25/8 Zhou finds 71761*12^71761-1, reserves base 12 to 100000. 3/16/8 Bedwell finds 10080*1965^10080-1, bases 1963 and 1964 checked to 20000; reserves 1965 to 20000. 3-13-8 Primegrid is rechecking base 13 to 250000. 3-5-8 Lau finds 16317*16114^16317-1. 2-6-8 Rodenkirch completes bases 4000 through 5000 to 10000, lots more primes! 2-3-8 Rodenkirch completes bases 5401 through 6000 to 10000, finds lots of primes. 12-17-7 Reynolds reserves base 5 from 106000 to 200000. 11-29-7 Wolter completes base 4 to 520000, base 8 to 300000, continuing with both, also reserves base 16 above 125000. 11-4-7 Rodenkirch finds 9657*5130^9657-1, 7177*5132^7177-1, 6198*5140^6198-1, 7869*5150^7869-1, 6572*5180^6572-1, 8218*5181^8218-1, 8225*5188^8225-1, 9090*5191^9090-1, 6272*5205^6272-1, 8135*5220^8135-1, 7052*5223^7052-1, 6968*5228^6968-1, 7384*5229^7384-1, 8788*5229^8788-1, 9072*5240^9072-1, 7527*5258^7527-1, 8004*5260^8004-1, 6387*5266^6387-1, 9680*5266^9680-1, 6182*5283^6182-1, 6470*5285^6470-1, 8658*5289^8658-1, 8952*5302^8952-1, 6132*5306^6132-1, 6414*5319^6414-1, 9608*5319^9608-1, 6881*5328^6881-1, 503*5340^8503-1, 9548*5376^9548-1, 7220*5397^7220-1; completed to 5400; reserves 4000 - 4999 to 10000. 10-26-7 Harvey finds 8910*1900^8910-1, 6310*1908^6310-1, 8526*1912^8526-1, 6281*1918^6281-1, 8862*1921^8862-1, 8112*1932^8112-1, 6761*1950^6761-1, 6752*1966^6752-1, 8502*1978^8502-1, 7422*1988^7422-1 10-23-7 Harvey finds 8223*1704^8223-1, 6221*1710^6221-1, 6842*1721^6842-1, 6482*1732^6482-1, 7724*1732^7724-1, 8260*1734^8260-1, 6338*1736^6338-1, 8718*1740^8718-1, 6180*1743^6180-1, 7519*1746^7519-1, 9102*1761^9102-1, 7878*1767^7878-1, 6198*1769^6198-1, 8179*1782^8179-1, 6780*1786^6780-1, 9650*1791^9650-1, 6383*1794^6383-1, 9680*1794^9680-1 10-17-7 Harvey finds 6933*1806^6933-1, 6428*1807^6428-1, 9135*1814^9135-1, 6152*1829^6152-1, 7935*1836^7935-1, 7348*1860^7348-1, 6135*1886^6135-1, 7486*1887^7486-1, 7774*1890^7774-1, 6320*1895^6320-1; completes 1800 through 1899, reserves 1900 through 1999. 10-12-7 Harvey finds 7092*1610^7092-1, 7300*1611^7300-1, 7128*1616^7128-1, 6813*1630^6813-1, 9928*1638^9928-1, 6902*1641^6902-1, 9165*1646^9165-1, 6566*1648^6566-1, 9770*1650^9770-1, 7115*1656^7115-1, 6730*1668^6730-1, 7285*1674^7285-1, 8155*1676^8155-1, 9632*1677^9632-1, 9325*1682^9325-1, 7803*1696^7803-1; completes 1618 through 1699, reserves 1700 through 1799. 10-1-7 Harvey finds 6998*1517^6998-1, 8274*1521^8274-1, 6688*1527^6688-1, 8800*1533^8800-1, 7994*1535^7994-1, 7917*1576^7917-1, 7992*1591^7992-1, 9873*1598^9873-1, 8714*1601^8714-1, completes bases 1516 through 1607 to 10000, continuing with 1608 through 1700. 9-23-7 Herranen finds 6612*1446^6612-1, 9904*1452^9904-1, 9345*1456^9345-1, 6292*1512^6292-1, & 46605*14^46605-1( 53420 digits, Rank 32); completes 1438 through 1515, to 10000 or more; completes base 14 to 47700, and reserves 14 further. 9-19-7 Harvey completes 1321 through 1399, to 10000; finds lots of primes, reserves bases 1500 to 1599, 6000 to 10000. 8-18-7 Rodenkirch completes bases 5000 to 5127, 6301 to 6500, 6801 to 7000, and 7801 to 8000, all to 10000; finds lots of primes, reserves 5128 through 6000 to 10000. 8-8-7 Herranen updates bases 102, 106, 107, 108, 1412 through 1437, finds primes 9695*1422^9695-1, 7520*1429^7520-1, and 6180*1431^6180-1. 7-14-7 Herranen reports bases 1405, 1406, 1407, 1409, 1410, and 1411 are checked to 10000, & base 1404 to 11000, & base 1408 to 10169, no new primes found. 7-10-7 Harvey reads that generalized Woodall primes are related to Goodstein's theorem, see http://en.wikipedia.org/wiki/Goodstein's_theorem 7-8-7 Herranen finds 10059*1400^10059-1 and 6992*1403^6992-1, base 12 checked to 60000, base 102 checked to 15500, base 102 to 15000, base 1400 to 11335, base 1401 & 1403 to 10000, base 1402 to 10625. 6-24-7 Rodenkirch finds 8318*6201^8318-1, 8670*6201^8670-1, 9845*6208^9845-1, 8272*6219^8272-1, 7605*6236^7605-1, 9686*6242^9686-1, 7724*6246^7724-1, 7489*6252^7489-1, 9524*6267^9524-1, 6444*6270^6444-1, 6693*6270^6693-1, 7568*6279^7568-1, 9422*6298^9422-1, 7831*6300^7831-1, 8472*6705^8472-1, 8539*6710^8539-1, 9857*6720^9857-1, 7066*6723^7066-1, 9146*6732^9146-1, 7282*6735^7282-1, 8346*6752^8346-1, 9680*6752^9680-1, 8699*6766^8699-1, 9206*6773^9206-1, 8826*6800^8826-1, 8531*7654^8531-1, 8631*7690^8631-1, 9324*7691^9324-1, 9202*7692^9202-1, 8444*7693^8444-1, 8820*7703^8820-1, 8298*7715^8298-1, 8484*7718^8484-1, 8847*7730^8847-1, 8318*7760^8318-1, 9468*7768^9468-1, 9918*7770^9918-1, 38590 digits, rank 71, 8781*7774^8781-1, 9480*7790^9480-1, completed bases 6201-6300, 6701-6800, 7601-7800, all to 10000. 6-15-7 Joel Hopper reserves base 43 from 150000 to 200000. 5-26-7 Rodenkirch finds 8408*6104^8408-1, 9657*6114^9657-1, 6917*6156^6917-1, 7880*6160^7880-1, 7404*6169^7404-1, 9480*6197^9480-1, 9005*6610^9005-1, 8493*6614^8493-1, 8272*6621^8272-1, 8817*6640^8817-1, 7590*6643^7590-1, 9740*6682^9740-1, 7052*6686^7052-1, 8330*6692^8330-1, 8862*7502^8862-1, 9506*7522^9506-1, 8603*7540^8603-1, 8117*7560^8117-1, 9933*7570^9933-1, digits 38536, Rank 72, 8112*7573^8112-1, 9520*7578^9520-1, 8151*7592^8151-1, completed bases 6100-6200 to 10000, bases 6600-6700 to 10000, & bases 7500-7600 to 10000. 5-24-7 Harvey finds 7784*1218^7784-1, 7982*1219^7982-1, 6950*1241^6950-1, 6324*1245^6324-1, 8723*1270^8723-1, 6600*1277^6600-1, 6553*1284^6553-1, 6333*1306^6333-1, 6698*1318^6698-1, 8787*1318^8787-1, 27419 digits, rank 200 & 8090*1321^8090-1, bases 1200-1320 done to 10000. 5-6-7 Rodenkirch finds 8205*7418^8205-1; 8288*7423^8288-1; 9852*7429^9852-1, 38141 digits, rank 74; 8895*7442^8895-1; 9618*7442^9618-1; 9111*7472^9111-1; 9291*7482^9291-1; 9804*7489^9804-1, digits 38141, rank 80; bases 7400 through 7500 are done to 10000. 4-23-7 Rodenkirch finds 6529*6000^6529-1, 9978*6000^9978-1, 37703 digits, rank 84, 6550*6006^6550-1, 6233*6018^6233-1, 7057*6030^7057-1, 9746*6030^9746-1, 36847 digits, rank 94, 7267*6050^7267-1, 6615*6068^6615-1, 8330*6081^8330-1, 9158*6098^9158-1, 9510*6510^9510-1, 7920*6534^7920-1, 7245*6550^7245-1, 9625*6552^9625-1, 36737 digits, rank 97, 9588*6576^9588-1,36611 digits, rank 100, 6977*6594^6977-1; all found with Phil Carmody's phrot program on a PPC G5. Bases 6000-6100 are complete to 10000 & bases 6500-6600 are complete to 10000 4-9-7 Rodenkirch finds 9512*7371^9512-1, 36792 digits, rank 94 and 9246*7372^9246-1, 35764 digits, rank 108, Bases 7300 to 7400 are completed to 10000. 3-23-7 Harvey finds 9768*1149^9768-1, 29898 digits; 7988*1153^7988-1, 24462 digits ; 6438*1154^6438-1, 19719 digits; 9958*1158^9958-1, 30513 digits; 9272*1163^9272-1, 28429 digits; 6108*1167^6108-1, 18738 digits; 9258*1171^9258-1, 28413 digits; 7015*1182^7015-1, 21559 digits; 8760*1182^8760-1, 26921 digits; 8384*1190^8384-1, 25790 digits; 9246*1195^9246-1, 28458 digits; 9442*1197^9442-1, 29068 digits; completes bases 1100 to 1200 to 10000. 3-17-7 Rodenkirch finds 9704*7207^9704-1, 37440 digits, rank 87; 8313*7216^8313-1, 32078 digits; 9873*7230^9873-1, 38106 digits, rank 75; 8862*7255^8862-1, 34217 digits; 9846*7260^9846-1, 38019 digits, rank 78; 8229*7276^8229-1, 31784 digits; 9119*7282^9119-1, 35224 digits & 9050*7296^9050-1, 34965 digits; bases 7200 to 7300 are completed to 10000. 3-14-7 Harvey finds 9240*1054^9240-1, 27936 digits; 7674*1059^7674-1, 23217 digits; 7500*1079^7500-1, 22752 digits; & 9449*1080^9449-1, 28667 digits; bases 1000 to 1100 are checked to 10000. 3-9-7 Peets reports 24810*97^24810-1 is prime(49297 digits), rank 36, and checking for base 97 is complete to 26700. 3-8-7 Matthew Peets notes that 5070*97^5070-1 (10077 Digits) is missing from the list, has checked base 97 to 20000, and reserves same to 100000. 3-1-7 Harvey finds 6409*1016^6409-1, 19275 digits; 8546*1023^8546-1, 25727 digits; 6324*1029^6324-1, 19055 digits; 6675*1032^6675-1, 20121 digits; 8767*1124^8767-1, 26751digits; 7667*1126^7667-1, 23401 digits; 9054*1131^9054-1, 27651 digits, 8560*1134^8560-1, 26152 digits; 7244*1139^7244-1, 22146 digits and 7230*1140^7230-1, 22106 digits. 2-23-7 Harvey finds 8426*1002^8426-1, 25290 digits; 6622*1008^6622-1, 19893 digits; 6829*1008^6829-1, 20515 digits; 7742*1010^7742-1, 23264 digits; 7158*1118^7158-1, 21825 digits; 8406*1118^8406-1, 25630 digits. 2-20-7 Rodenkirch finds 9333*7156^9333-1, 35980 digits, rank 101; 8612*7160^8612-1, 33203 digits, rank 127; 9774*7190^9774-1, 37700 digits, rank 81; and 9028*7191^9028-1, 34824 digits, rank 113. 2-15-7 Harvey finds 6895*1100^6895-1, 20975 digits; 8115*1108^8115-1, 24711 digits; & 6864*1111^6864-1, 20910 digits. 2-8-7 Harvey completes base 9 to 100000, reserves bases 1001 to 1200 from 6000 to 10000. 2-7-7 Harvey does more double checks, replaces 4814*847^4814-1, composite, with 4814*874^4814-1, prime; 4274*1011^4274-1, composite, with 4272*1011^4272-1, prime; 2737*1053^2737-1,composite, with 2732*1053^2732-1, prime; 4274*1100^4274-1, composite, with 4272*1100^4272, prime; 2235*1368^2235-1, composite, with 2335*1368^2335-1, prime; 3086*1404^3086-1, composite, with 3068*1404^3068-1, prime; 1534*1408^1534-1, composite, with 1532*1408^1532-1, prime; 5579*2412^5579-1, composite, with 5570*2412^5570-1, prime; & 4656*3051^4656-1, composite, with 4652*3051^4652-1, prime. 2-6-7 Harvey double-checks list, finds some errors and corrects: 6039*306^6039-1, 420*385^420-1, 2108*381^2108-1, 2268*466^2268-1, 751*504^751-1, 2268*575^2268-1, 851*582^851-1, 1070*777^1070-1 & deletes 2931*724^2931-1 1-25-7 Rodenkirch reserves bases 7000 to 7999 up to 10000. 1-6-7 Harvey completes base 7 to 100000, no primes; reserves base 9 to 100000. 12-8-6 Harvey reserves base 7 to 100000. 12-6-6 Carmody introduces new prp proving program, Phrot; often faster than PFGW on bases < ~1200. 9-16-6 Wolter updates bases 4 and 8. 7-31-6 Soule reserves base 98 from 12000 up. 3/31/6 Minovic reports base 13 checked to 240500, reserved to 252000. 2/24/6 Wolter reserves base 8 from 211900 to 300000, checked to 217,500. 2/1/6 Harvey finds 9179*7098^9179-1 is prime. 1/30/6 Harvey finds 9472*7089^9472-1 & 8823*7090^8823-1 are prime. 1/23/6 Harvey finds 8261*7084^8261-1 is prime. 12/28/5 Harvey finds 9846*7055^9846-1 & 8689*7062^8689-1 are prime. 11/27/5 Wolter updates base 4 to 282500, & 317900 to 425000, and releases same. 11/17/5 Harvey finds 9374*7046^9374-1 is prime. 11/16/5 Harvey finds 9905*7044^9905-1 is prime. 9/7/5 Harvey finds 8448*7028^8448-1 is prime, 32502 digits. 8/21/5 Minovic reports base 43 checked to 150000 & stopping; base 13 to 231900 & continuing. 8/2/5 Minovic reports base 43 checked to 144000, continuing to 15000k, and base 32768 checked to 60000, reservation extended to 70000. 6/3/5 Wolter updates base 4. 5/17/5 Crawford finds 25093*666^25093-1 is prime, 70854 digits, 18th largest! 5/5/5 Crawford finds 11687*666^11687-1 is prime, 33003 digits!; reserves base 666 to 100000. 4/28/5 Wolter updates base 4. 4/27/5 Benson finds 46984*18^46984-1 is prime, 58983 digits! 4/10/5 Benson finds 29838*90^29838-1 is prime, 58316 digits! 4/4/5 Rodenkirch completes bases 8000 through 9000 up to 10000; finds lots of new primes, including 9602*8907^9602-1 & 9978*8705^9978-1. 3/23/5 Minovic reports base 3 continuously checked through 403000; reserves bases 13 and 43. 3/17/5 Minovic reports base 171 checked through 50000, & stopped; base 32768 checked through 56000, continuing to 60000, no primes. 3/8/5 Harvey completes bases 7427 through 7999 to 8000; Wolter further updates base 4. 2/26/5 Augustin reserves base 20 to 100000. 2/15/5 Rodenkirch completes all bases below 6000 to 6000, lots of new primes, including 5978*5517^5978-1 & 5933*5554^5933-1; Rodenkirch also provides preliminary results for 8000 - 9000 up to 10000. 2/14/5 Harvey reserves bases 7427 through 7999 to 8000. 2/9/5 Harvey completes bases 100 through 200 to 11000. 2/4/5 Rodenkirch updates his ranges again, with all bases less than 4850 checked to 6000; reserves bases 8000 through 9000 up to 10000. Harvey completes base 1024 to 60000, reserves bases 100 through 200 to 11000. 1/25/5 Rodenkirch completes bases less than 1000 to 10000, updates other ranges with lots of new primes! 1/21/5 Wolter updates base 4, reserves same to 400000. 1/18/5 Minovic reports 20418*183^20418-1 is prime, 46200 digits, first base 183 prime, completes base 183 to 30000; completes base 175 to 35000; checks 2005 from 16250 to 22000; completes base 32768 to 50000, reserves 32768 to 60000. 1/11/5 Harvey completes base 256 to 70000. 1/10/5 Rodenkirch updates again, completes bases less than 2472 to 5000; & bases less than 2136 to 6000; & bases less than 488 to 10000. 1/3/5 Rodenkirch updates his searches, dozens of new primes; completes bases less than 1949 to 5000; & bases less than 1923 to 6000; & bases less than 403 to 10000. 12/29/4 Minovic updates bases 3, 6, 105, 155, 169, 171; reserves base 32768 to 50000. 12/28/4 Wolter reports that base 4, 317900-335200 is prime free. 12/27/4 Harvey completes bases 13100 through 13199 to 13200, no primes. 12/21/4 Rodenkirch completes bases less than 1915 to 5000, & bases greater than 3455 to 5000; finds dozens of primes; reserves bases less than 1000 to 10000. 12/20/4 Harvey reserves bases 13100 through 13199 to 13200. 12/16/4 Minovic stops work on 121 [35000], 145 [35001], 149 [33000], 153 [35000], 167 [33000], 179 [32000], 181 [32000], 193 [32000], 199 [32000] 12/15/4 Rodenkirch reserves bases less than 6000, up to 6000. 12/9/4 Minovic finds 34130*124^34130-1 prime, 71454 digits, first base 124 GW prime. 12/8/4 Harvey completes bases 12800 through 13000 to 13001, and bases 13000 to 13099 to 13100, no primes found. 12/3/4 Rodenkirch reserves bases less than 5000, up to 5000. Harvey releases bases 12065 through 12799. 12/2/4 Minovic reports 26780*197^26780-1 is prime, first prime for base 197. Minovic also points out that the following 3 numbers are composites: 15400*5^15400-1 has factors: 3 12380*7^12380-1 has factors: 17 10063*9^10063-1 has factors: 2 Harvey reports 12618*12048^12618-1, 12572*12054^12572-1, & 12914*12064^12914-1 are prime. 11/19/4 Minovic reports first primes for bases 191 & 194: 17670*191^17670-1 is prime! 40311 digits [18200] 18200*194^18200-1 is prime! 41643 digits [19000] 11/17/4 Harvey reserves bases 12000 through 13000 to 13001. 11/15/4 Wolter updates base 4. 11/12/4 Minovic reports 912*135^912-1 & 14739*178^14739-1 prime. Keller abandons base 8 at 183245. 11/8/4 Minovic reports 401208*3^401208-1 is prime! 191431 digits. NEW WORLD RECORD! 11/4/4 Harvey completes base 11 from 50000 to 60000, no primes. 10/27/4 Minovic reports base 6 is checked from 70000 to 10000, & 200000 to 205000, no primes; reserves same from 205000 to 220000; base 43 is checked to 140000, base 3 to 302000, & 325000 to 395000. 10/26/4 Harvey completes base 10 from 50000 to 60000, no primes. 10/12/4 Harvey completes base 9 to 60000, reserves bases 10 & 11 from 50000 to 60000. 10/6/4 Harvey abandons bases 25 through 28, reserves base 9 to 60000. 9/27/4 Keller reserves base 8. 9/20/4 Harvey completes base 4 through 250000. 9/16/4 Harvey completes base 8192 to 38500. 9/15/4 Minovic reports base 3 completed to 300000. Wolter reserves base 4 to 300000, updates and abandons base 72. 9/8/4 Harvey completes bases 451 through 500 to 6500, reserves same to 8192. 8/24/4 Minovic reserves base 6 to 100000. 8/18/4 Harvey reserves base 8192 to 38500. 8/17/4 Minovic reports 292340*3^292340-1 is prime! 139488 digits, second largest. 8/16/4 Harvey completes base 512 to 55555. 8/12/4 Harvey completes base 32 to 100000. 8/11/4 Harvey completes base 64 to 80000. 8/9/4 Harvey completes base 8 to 166666, and base 16 to 125000. 6/28/4 Harvey reserves base 32 to 100000. 6/22/4 Minovic reports 96584*5^96584-1 is prime!(67515 digits), completes base 5 through 106000. 6/21/4 Harvey completes bases 84 through 93 to 26000. 6/14/4 Harvey finds 23857*86^23857-1 is prime!(46156 digits). Minovic reserves base 5 to 106000. 6/10/4 Minovic reports base 3 complete to 256000 & 325000-360000, reserves to 400000; base 13 checked to 230000; base 43 checked to 136000, reserves to 150000; base 104 completed to 86000; base 105 checked to 101000. 5/20/4 Harvey completes base 128 to 71000; reserves base 64 to 80000. 5/5/4 Chaffey unreserves his ranges. 4/27/4 Chaffey completes bases 2343-2351 to 5000, finds 4491*2350^4491-1; reserves same to 6000. 4/26/4 Chaffey reserves bases 2343-2351 up to 4200, and 7400-7500 up to 10000. 4/20/4 Minovic finds 168660*3^168660-1 is prime!(80477 digits). 4/19/4 Minovic finds 161538*3^161538-1 is prime!(77079 digits). 4/16/4 Minovic completes base 3 to 161000, reserves same to 210000. 4/7/4 Minovic reserves base 3 to 160000. 3/30/4 Harvey reserves base 4 to 250000, & base 8 to 166666. 3/29/4 Rodenkirch reports 9662*9239^9662-1(38320 digits), 9474*9284^9474-1(37595 digits), 9792*9289^9792-1(38859 digits), & bases 9200 thru 9699 complete up to 10000. 3/26/4 Minovic completes base 51 to 56257, reserves base 3 to 140000, and base 43 to 140000. 3/18/4 Harvey reserves base 64 to 125000. 3/15/4 46640*51^46640-1 is prime! (79646 digits)(Minovic),first base 51 prime! Lipinski completes base 10000 to 11000. 3/10/4 Harvey completes base 24 to 40000. Rodenkirch completes bases from 9101 to 9200 up to 10000, & finds 9752*9107^9752-1(38616 digits),9756*9160^9756-1(38657 digits),9728*9190^9728-1(38560 digits). 3/4/4 Minovic completes base 103 to 69269. 3/2/4 Harvey reserves base 256 to 70000, completes base 2048 to 43500. 3/1/4 61652*103^61652-1 is prime!(124101 digits)second largest, and first base 103!(Minovic) 2/24/4 Rodenkirch reports 9618*9081^9618-1 (38074 digits) & 9588*9082^9588-1 (37956 digits), completes bases 9000 to 9100 up to 10000. Minovic reserves base 51 to 58000. 2/19/4 54528*69^54528-1 is prime!(100274 digits)(Minovic), sixth largest, first GW base 69. 94110*3^94110-1 is prime!(44907 digits)(Harvey). 2/17/4 9804*9015^9804-1 is prime!(38779 digits)(RodenKirch). Rodenkirch completes bases 9700 through 9899 to 10000. Harvey completes bases 73, 74, 75, 78, & 79 to 26000; reserves base 4096 to 40000 & base 3 to 110000.