9!7+1 trivially factors prime!: 19 (digits:2) 10!7+1 trivially factors prime!: 31 (digits:2) 12!7+1 trivially factors prime!: 61 (digits:2) 13!7+1 trivially factors prime!: 79 (digits:2) 24!7+1 trivially factors prime!: 12241 (digits:5) 25!7+1 trivially factors prime!: 19801 (digits:5) 26!7+1 trivially factors prime!: 29641 (digits:5) 29!7+1 trivially factors prime!: 76561 (digits:5) 31!7+1 trivially factors prime!: 379441 (digits:6) 35!7+1 trivially factors prime!: 2016841 (digits:7) 36!7+1 trivially factors prime!: 2756161 (digits:7) 47!7+1 trivially factors prime!: 1838865601 (digits:10) 49!7+1 trivially factors prime!: 4150656721 (digits:10) Primality testing 57!7+1 [N-1, BLS] 57!7+1 is prime! (0.000000 seconds) (digits:12) Primality testing 58!7+1 [N-1, BLS] 58!7+1 is prime! (0.000000 seconds) (digits:12) Primality testing 64!7+1 [N-1, BLS] 64!7+1 is prime! (0.000000 seconds) (digits:14) Primality testing 71!7+1 [N-1, BLS] 71!7+1 is prime! (0.000000 seconds) (digits:16) Primality testing 73!7+1 [N-1, BLS] 73!7+1 is prime! (0.000000 seconds) (digits:16) Primality testing 75!7+1 [N-1, BLS] 75!7+1 is prime! (0.000000 seconds) (digits:17) Primality testing 78!7+1 [N-1, BLS] 78!7+1 is prime! (0.000000 seconds) (digits:18) Primality testing 80!7+1 [N-1, BLS] 80!7+1 is prime! (0.000000 seconds) (digits:18) Primality testing 97!7+1 [N-1, BLS] 97!7+1 is prime! (0.000000 seconds) (digits:23) Primality testing 123!7+1 [N-1, BLS] 123!7+1 is prime! (0.016000 seconds) (digits:31) Primality testing 125!7+1 [N-1, BLS] 125!7+1 is prime! (0.015000 seconds) (digits:31) Primality testing 129!7+1 [N-1, BLS] 129!7+1 is prime! (0.016000 seconds) (digits:33) Primality testing 131!7+1 [N-1, BLS] 131!7+1 is prime! (0.015000 seconds) (digits:33) Primality testing 135!7+1 [N-1, BLS] 135!7+1 is prime! (0.000000 seconds) (digits:34) Primality testing 147!7+1 [N-1, BLS] 147!7+1 is prime! (0.016000 seconds) (digits:38) Primality testing 150!7+1 [N-1, BLS] 150!7+1 is prime! (0.016000 seconds) (digits:39) Primality testing 159!7+1 [N-1, BLS] 159!7+1 is prime! (0.016000 seconds) (digits:42) Primality testing 183!7+1 [N-1, BLS] 183!7+1 is prime! (0.016000 seconds) (digits:49) Primality testing 201!7+1 [N-1, BLS] 201!7+1 is prime! (0.016000 seconds) (digits:55) Primality testing 250!7+1 [N-1, BLS] 250!7+1 is prime! (0.015000 seconds) (digits:72) Primality testing 251!7+1 [N-1, BLS] 251!7+1 is prime! (0.000000 seconds) (digits:72) Primality testing 255!7+1 [N-1, BLS] 255!7+1 is prime! (0.015000 seconds) (digits:74) Primality testing 298!7+1 [N-1, BLS] 298!7+1 is prime! (0.032000 seconds) (digits:89) Primality testing 336!7+1 [N-1, BLS] 336!7+1 is prime! (0.031000 seconds) (digits:102) Primality testing 337!7+1 [N-1, BLS] 337!7+1 is prime! (0.015000 seconds) (digits:102) Primality testing 458!7+1 [N-1, BLS] 458!7+1 is prime! (0.016000 seconds) (digits:148) Primality testing 467!7+1 [N-1, BLS] 467!7+1 is prime! (0.016000 seconds) (digits:151) Primality testing 556!7+1 [N-1, BLS] 556!7+1 is prime! (0.016000 seconds) (digits:186) Primality testing 570!7+1 [N-1, BLS] 570!7+1 is prime! (0.016000 seconds) (digits:191) Primality testing 657!7+1 [N-1, BLS] 657!7+1 is prime! (0.031000 seconds) (digits:226) Primality testing 743!7+1 [N-1, BLS] 743!7+1 is prime! (0.047000 seconds) (digits:260) Primality testing 801!7+1 [N-1, BLS] 801!7+1 is prime! (0.031000 seconds) (digits:285) Primality testing 908!7+1 [N-1, BLS] 908!7+1 is prime! (0.016000 seconds) (digits:329) Primality testing 925!7+1 [N-1, BLS] 925!7+1 is prime! (0.015000 seconds) (digits:336) Primality testing 1003!7+1 [N-1, BLS] 1003!7+1 is prime! (0.016000 seconds) (digits:370) Primality testing 1209!7+1 [N-1, BLS] 1209!7+1 is prime! (0.047000 seconds) (digits:460) Primality testing 1473!7+1 [N-1, BLS] 1473!7+1 is prime! (0.063000 seconds) (digits:578) Primality testing 1524!7+1 [N-1, BLS] 1524!7+1 is prime! (0.094000 seconds) (digits:601) Primality testing 1716!7+1 [N-1, BLS] 1716!7+1 is prime! (0.187000 seconds) (digits:688) Primality testing 1881!7+1 [N-1, BLS] 1881!7+1 is prime! (0.093000 seconds) (digits:765) Primality testing 1926!7+1 [N-1, BLS] 1926!7+1 is prime! (0.250000 seconds) (digits:786) Primality testing 2079!7+1 [N-1, BLS] 2079!7+1 is prime! (0.125000 seconds) (digits:859) Primality testing 2346!7+1 [N-1, BLS] 2346!7+1 is prime! (0.532000 seconds) (digits:986) Primality testing 2446!7+1 [N-1, BLS] 2446!7+1 is prime! (0.110000 seconds) (digits:1035) Primality testing 2451!7+1 [N-1, BLS] 2451!7+1 is prime! (0.282000 seconds) (digits:1037) Primality testing 2655!7+1 [N-1, BLS] 2655!7+1 is prime! (0.313000 seconds) (digits:1136) Primality testing 2819!7+1 [N-1, BLS] 2819!7+1 is prime! (0.157000 seconds) (digits:1217) Primality testing 2838!7+1 [N-1, BLS] 2838!7+1 is prime! (0.734000 seconds) (digits:1226) Primality testing 3028!7+1 [N-1, BLS] 3028!7+1 is prime! (0.437000 seconds) (digits:1320) Primality testing 3504!7+1 [N-1, BLS] 3504!7+1 is prime! (0.906000 seconds) (digits:1559) Primality testing 3636!7+1 [N-1, BLS] 3636!7+1 is prime! (1.266000 seconds) (digits:1626) Primality testing 3700!7+1 [N-1, BLS] 3700!7+1 is prime! (0.562000 seconds) (digits:1659) Primality testing 3747!7+1 [N-1, BLS] 3747!7+1 is prime! (0.375000 seconds) (digits:1683) Primality testing 4029!7+1 [N-1, BLS] 4029!7+1 is prime! (0.562000 seconds) (digits:1828) Primality testing 4482!7+1 [N-1, BLS] 4482!7+1 is prime! (0.453000 seconds) (digits:2062) Primality testing 4831!7+1 [N-1, BLS] 4831!7+1 is prime! (2.406000 seconds) (digits:2245) Primality testing 5666!7+1 [N-1, BLS] 5666!7+1 is prime! (1.172000 seconds) (digits:2689) Primality testing 6939!7+1 [N-1, BLS] 6939!7+1 is prime! (1.719000 seconds) (digits:3380) Primality testing 8220!7+1 [N-1, BLS] 8220!7+1 is prime! (4.984000 seconds) (digits:4090) Primality testing 8248!7+1 [N-1, BLS] 8248!7+1 is prime! (5.579000 seconds) (digits:4105) Primality testing 8855!7+1 [N-1, BLS] 8855!7+1 is prime! (3.484000 seconds) (digits:4446) Primality testing 9472!7+1 [N-1, BLS] 9472!7+1 is prime! (8.562000 seconds) (digits:4795) Primality testing 9533!7+1 [N-1, BLS] 9533!7+1 is prime! (3.828000 seconds) (digits:4830) Primality testing 10739!7+1 [N-1, BLS] 10739!7+1 is prime! (11.062000 seconds) (digits:5520) Primality testing 11042!7+1 [N-1, BLS] 11042!7+1 is prime! (11.750000 seconds) (digits:5695) Primality testing 12245!7+1 [N-1, BLS] 12245!7+1 is prime! (11.172000 seconds) (digits:6394) Primality testing 15381!7+1 [N-1, BLS] Running N-1 test using base 7 15381!7+1 is prime! (0.6850s+0.0024s)(digits:8248) Primality testing 18591!7+1 [N-1, BLS] Running N-1 test using base 3109 18591!7+1 is prime! (1.8353s+0.0031s)(digits:10188) Mark Rodenkirch 11/2016 Primality testing 20291!7+1 [N-1, BLS] 20291!7+1 is prime! (66.297000 seconds) (digits:11230) Iago L Camboa p7 10/1999 Primality testing 20636!7+1 [N-1, BLS] 20636!7+1 is prime! (26.531000 seconds) (digits:11442) Iago L Camboa p7 10/1999 Primality testing 22988!7+1 [N-1, BLS] 22988!7+1 is prime! (31.219000 seconds) (digits:12900) Iago L Camboa p7 11/1999 Primality testing 26496!7+1 [N-1, BLS] 26496!7+1 is prime! (69.7142s+0.0315s) (digits:15101) Steven Harvey 10/2003 Primality testing 26568!7+1 [N-1, BLS] 26568!7+1 is prime! (171.2687s+0.0358s) (digits:15147) Steven Harvey 10/2003 Primality testing 27382!7+1 [N-1, BLS] 27382!7+1 is prime! (129.7428s+0.0323s) (digits:15662) Steven Harvey 10/2003 Primality testing 31425!7+1 [N-1, BLS] 31425!7+1 is prime! (152.0945s+0.0783s) (digits:18243) Steven Harvey 10/2003 Primality testing 33890!7+1 [N-1, BLS] 33890!7+1 is prime! (210.7894s+0.0655s) (digits:19832) Steven Harvey 10/2003 Primality testing 40189!7+1 [N-1, BLS] 40189!7+1 is prime! (430.7076s+0.3147s) (digits:23943) Steven Harvey 10/2003 Primality testing 40997!7+1 [N-1, BLS] 40997!7+1 is prime! (370.3963s+0.0616s) (digits:24475) Steven Harvey 10/2003 Primality testing 41139!7+1 [N-1, BLS] 41139!7+1 is prime! (221.4079s+0.0630s) (digits:24568) Steven Harvey 10/2003 Primality testing 41313!7+1 [N-1, BLS] 41313!7+1 is prime! (218.0781s+0.0672s) (digits:24683) Steven Harvey 10/2003 Primality testing 41666!7+1 [N-1, BLS] 41666!7+1 is prime! (212.2436s+0.0138s) (digits:24916) Steven Harvey 10/2003 Primality testing 45250!7+1 [N-1, BLS] 45250!7+1 is prime! (369.7290s+0.0202s) (digits:27291) Steven Harvey 10/2003 Primality testing 46586!7+1 [N-1, BLS] 46586!7+1 is prime! (184.0801s+0.0899s) (digits:28180) Steven Harvey 10/2003 Primality testing 47797!7+1 [N-1, BLS] 47797!7+1 is prime! (215.8790s+0.1141s) (digits:28989) Steven Harvey 10/2003 Primality testing 54896!7+1 [N-1, BLS] 54896!7+1 is prime! (207.6877s+0.0868s) (digits:33766) Steven Harvey 11/2003 Primality testing 67281!7+1 [N-1, BLS] 67281!7+1 is prime! (417.2998s+0.2436s) (digits:42232) Steven Harvey p119 11/2003 Primality testing 73826!7+1 [N-1, BLS] Running N-1 test using base 7 Running N-1 test using base 12421 Running N-1 test using base 12491 73826!7+1 is prime! (1093.7578s+0.1471s) (digits:46766) Ian Brown 01/2007 Primality testing 79379!7+1 [N-1, BLS] Running N-1 test using base 13441 Running N-1 test using base 13679 79379!7+1 is prime! (1081.6949s+0.1458s) (digits:50640) Ian Brown 01/2007 Primality testing 87239!7+1 [N-1, BLS] Running N-1 test using base 7 Running N-1 test using base 14653 Running N-1 test using base 14737 87239!7+1 is prime! (1596.7280s+0.1763s) (digits:56165) Ian Brown 01/2007 Primality testing 113888!7+1 [N-1, BLS] Running N-1 test using base 7 113888!7+1 is prime! (1192.8516s+0.4422s) (digits:75205) Rene Dohmen 09/2007 Primality testing 127284!7+1 [N-1, BLS] Running N-1 test using base 7 Running N-1 test using base 21277 127284!7+1 is prime! (3291.6453s+0.5743s) (digits:84929) Rene Dohmen 11/2007 Primality testing 132058!7+1 [N-1, BLS] Running N-1 test using base 7 132058!7+1 is prime! (1137.6900s+0.1100s) (digits:88415) Rene Dohmen p3 04/2007 Primality testing 142780!7+1 [N-1, BLS] Running N-1 test using base 24023 142780!7+1 is prime! (3156.7985s+0.7692s) (digits:96285) Rene Dohmen 01/2008 Primality testing 159251!7+1 [N-1, BLS] Running N-1 test using base 26627 159251!7+1 is prime! (1791.7773s+0.1600s) (digits:108471) Rene Dohmen p3 05/2008 Primality testing 160393!7+1 [N-1, BLS] Running N-1 test using base 26801 Running N-1 test using base 27109 160393!7+1 is prime! (4995.5779s+1.0440s) (digits:109320) Rene Dohmen p3 05/2008 Primality testing 196304!7+1 [N-1, BLS] Running N-1 test using base 32869 Running N-1 test using base 32911 Running N-1 test using base 33037 196304!7+1 is prime! (18919.6421s+0.7396s) (digits:136256) Rene Dohmen p3 06/2009 Primality testing 199071!7+1 [N-1/N+1, BLS] Running N-1 test using base 33203 Running N-1 test using base 33343 Running N-1 test using base 33427 Running N+1 test using discriminant 33623, base 14+sqrt(33623) 199071!7+1 is prime! (82590.3627s+1.7089s) (digits:138349) Rene Dohmen p3 06/2009 Primality testing 206494!7+1 [N-1, BLS] Running N-1 test using base 34747 Running N-1 test using base 35027 206494!7+1 is prime! (10461.4752s+1.8928s) (digits:143977) Rene Dohmen p3 08/2009 Primality testing 208502!7+1 [N-1, BLS] Running N-1 test using base 29837 Running N-1 test using base 29851 208502!7+1 is prime! (-887.7846s+0.2800s) (digits:145502) Rene Dohmen p3 09/2009 Primality testing 234676!7+1 [N-1, BLS] Running N-1 test using base 39157 Running N-1 test using base 39199 234676!7+1 is prime! (10266.4831s+3.2527s) (digits:165489) Rene Dohmen p3 04/2010 Primality testing 278738!7+1 [N-1, BLS] Running N-1 test using base 7 278738!7+1 is prime! (-1858.7046s+0.5000s) (digits:199536) Rene Dohmen p3 08/2010 Primality testing 284400!7+1 [N-1, BLS] Running N-1 test using base 47407 Running N-1 test using base 47491 284400!7+1 is prime! (-1670.3765s+0.5200s) (digits:203944) Rene Dohmen p3 05/2010 Primality testing 364899!7+1 [N-1, BLS] Running N-1 test using base 61051 Running N-1 test using base 61121 364899!7+1 is prime! (13846.7094s+1.0795s) (digits:267312) Rene Dohmen p3 12/2010 [Elapsed time: 3.85 hours] Primality testing 366923!7+1 [N-1, BLS] Running N-1 test using base 7 366923!7+1 is prime! (-1620.1819s+0.8800s) (digits:268920) Rene Dohmen p3 12/2010 [Elapsed time: 3.50 hours] Primality testing 478253!7+1 [N-1, BLS] Running N-1 test using base 79801 Running N-1 test using base 79829 478253!7+1 is prime! (51515.3699s+2.6254s) (digits:358376) Rene Dohmen p3 09/2011 [Elapsed time: 14.31 hours] Primality testing 502051!7+1 [N-1, BLS] Running N-1 test using base 7 502051!7+1 is prime! (19061.1557s+2.9446s) (digits:377722) Rene Dohmen p3 01/2012 [Elapsed time: 5.30 hours] Primality testing 525806!7+1 [N-1, BLS] Running N-1 test using base 87793 525806!7+1 is prime! (4377.4439s+1.7913s) (digits:397102) Rene Dohmen p3 08/2012 Primality testing 559741!7+1 [N-1, BLS] Running N-1 test using base 79967 559741!7+1 is prime! (4675.2281s+2.1494s) (digits 424902) Mark Rodenkirch 02/2017