Riesel primes of the form 6555•2n-1

Current data

k , b : 6555 , 2 Type : 315 Count : 101 Nash : 5163 Max n : 1,333,000 Date : 2025-05-05

1, 4, 11, 13, 18, 21, 36, 37, 46, 66, 67, 71, 86, 102, 107, 118, 126, 136, 148, 162, 192, 201, 202, 211, 213, 216, 221, 259, 294, 351, 493, 539, 787, 816, 1289, 1320, 1478, 1501, 1586, 1659, 1679, 1722, 1799, 1908, 2562, 2611, 2831, 3007, 3193, 3507, 4161, 5464, 5647, 6477, 6588, 6929, 8489, 9162, 9517, 9761, 12891, 13802, 15984, 17542, 21041, 21742, 23230, 27228, 27866, 31768, 41753, 44626, 49656, 71657, 78299, 129732, 138551, 169579, 211720, 235260, 236514, 260989, 331847, 436774, 451634, 545008, 556347, 746598, 754942, 786768, 852689, 951938, 1008197, 1068902, 1080139, 1083091, 1125540, 1225770, 1254508, 1260074, 1270491

History

• 2025-05-05: Checked n = 10000 - 380000, Gary Barnes, released
• 2024-04-10: Checked n = 380000 - 1333000, RPS Drive 8, released
• 2015-03-13: Found n = 1270491, James P. Burt, RPS Drive 8
• 2014-05-31: Found n = 1254508, William Byerly, RPS Drive 8
• 2014-05-30: Found n = 1260074, Lennart Vogel, RPS Drive 8
• 2014-03-09: Found n = 1225770, Thomas Ritschel, RPS Drive 8
• 2013-08-26: Found n = 1125540, James P. Burt, RPS Drive 8
• 2013-02-11: Found n = 1083091, Predrag Minovic, RPS Drive 8
• 2012-08-17: Found n = 1080139, Shashank Sharma, RPS Drive 8
• 2012-07-16: Found n = 1068902, Shashank Sharma, RPS Drive 8
• 2011-09-20: Found n = 1008197, Larry Soule, RPS Drive 8
• 2011-04-12: Found n = 951938, Peter Benson, RPS Drive 8
• 2011-01-13: Found n = 852689, Peter Benson, RPS Drive 8
• 2010-10-24: Found n = 786768, Peter Benson, RPS Drive 8
• 2010-09-17: Found n = 754942, Peter Benson, RPS Drive 8
• 2010-09-12: Found n = 746598, Predrag Minovic, RPS Drive 8
• 2009-07-10: Found n = 556347, Peter Benson, RPS Drive 8
• 2009-06-30: Found n = 545008, Predrag Minovic, Larry Soule, RPS Drive 8
• 2009-04-18: Found n = 451634, Predrag Minovic, RPS Drive 8
• 2009-04-13: Found n = 436774, Predrag Minovic, RPS Drive 8
• 2009-03-24: Reserved by RPS Drive 8, for n = 380000 - 700000
• 2007-07-06: Checked n = 1 - 10000, Gary Barnes
• 2005-04-06: Found n = 260989, Larry Soule
• 2005-03-31: Found n = 236514, Larry Soule
• 2005-03-31: Found n = 235260, Larry Soule
• 2005-03-31: Found n = 211720, Larry Soule