Riesel primes of the form 5865•2n-1

Current data

k , b : 5865 , 2 Type : 315 Count : 95 Nash : 4813 Max n : 1,333,000 Date : 2025-05-05

2, 3, 6, 7, 10, 21, 26, 28, 30, 33, 50, 53, 64, 106, 117, 127, 130, 138, 152, 158, 188, 196, 233, 264, 294, 378, 406, 483, 512, 597, 706, 747, 835, 932, 1126, 1227, 1568, 1701, 2115, 2306, 2324, 2516, 2553, 2576, 3115, 3274, 3498, 3617, 4742, 4920, 5428, 5922, 6125, 6320, 7080, 7364, 8094, 11703, 14298, 16806, 17190, 17954, 19385, 19917, 26852, 33652, 41385, 46810, 47674, 47885, 69390, 71758, 71943, 76398, 77223, 81051, 84742, 113494, 126514, 187673, 261351, 365826, 381794, 417280, 427626, 511085, 613568, 678597, 818472, 837271, 889294, 889524, 1157728, 1189894, 1291784

History

• 2025-05-05: Checked n = 10000 - 380000, Gary Barnes, double-check n = 200000 - 300000, released
• 2024-04-10: Checked n = 380000 - 1333000, RPS Drive 8, released
• 2015-03-24: Found n = 1291784, James P. Burt, RPS Drive 8
• 2013-10-02: Found n = 1189894, James P. Burt, RPS Drive 8
• 2013-09-21: Found n = 1157728, James P. Burt, RPS Drive 8
• 2011-02-03: Found n = 889524, Peter Benson, RPS Drive 8
• 2011-02-03: Found n = 889294, Peter Benson, RPS Drive 8
• 2010-12-29: Found n = 837271, Peter Benson, RPS Drive 8
• 2010-12-02: Found n = 818472, Peter Benson, RPS Drive 8
• 2009-11-07: Found n = 678597, Peter Benson, RPS Drive 8
• 2009-08-15: Found n = 613568, Lennart Vogel, RPS Drive 8
• 2009-05-12: Found n = 511085, David Metcalfe, RPS Drive 8
• 2009-04-12: Found n = 417280, David Metcalfe, RPS Drive 8
• 2009-04-06: Found n = 427626, Thomas Ritschel, RPS Drive 8
• 2009-03-24: Found n = 381794, Thomas Ritschel, RPS Drive 8
• 2009-03-24: Reserved by RPS Drive 8, for n = 380000 - 700000
• 2007-07-06: Checked n = 1 - 10000, Gary Barnes
• 2005-05-23: Checked n = 200000 - 300000, Rafal Stanilewicz
• 2005-05-04: Found n = 261351, Rafal Stanilewicz
• 2005-04-08: Found n = 187673, Larry Soule