Riesel primes of the form 2775•2n-1

Current data

k , b : 2775 , 2 Type : 315 Count : 48 Nash : 2507 Max n : 2,000,000 Date : 2024-04-14

5, 8, 25, 33, 35, 47, 58, 97, 124, 203, 215, 399, 1067, 1274, 2360, 2618, 2679, 2787, 3117, 4808, 9177, 9989, 10313, 14339, 14447, 14944, 14973, 35674, 53849, 64490, 83578, 114268, 121340, 165237, 201045, 317517, 397664, 407228, 408874, 453293, 457647, 489194, 557490, 725837, 758945, 1016504, 1035040, 1314555

History

• 2024-04-14: Checked to n = 2000000, RPS Drive 7, released
• 2014-01-14: Found n = 1314555, David Metcalfe, RPS Drive 7
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-06: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-11: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2011-10-15: Found n = 1035040, David Metcalfe, RPS Drive 7
• 2011-10-13: Found n = 1016504, David Metcalfe, RPS Drive 7
• 2011-09-13: Reserved to n = 2000000, RPS Drive 7
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-09-12: Found n = 408874, Peter Benson, RPS Drive 7
• 2010-09-12: 407228 confirmed, Carlos Eduardo Pinho, RPS Drive 7
• 2010-05-09: 557490 confirmed, Gary Barnes, NPLB Drive 11
• 2010-01-16: Found n = 725837, Michael Curtis, RPS Drive 7
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2010-01-01: Found n = 758945, Peter Benson, RPS Drive 7
• 2009-12-18: Checked n = 20000 - 50000, Karsten Bonath
• 2009-10-06: 489194 confirmed, Vaughan Davies, NPLB Drive 11
• 2009-08-22: Reserved to n = 1000000, RPS Drive 7
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-07-27: 457647 confirmed, Gary Barnes, NPLB Drive 11
• 2009-07-23: 453293 confirmed, Gary Barnes, NPLB Drive 11
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000
• 2009-05-02: Found n = 557490, David Metcalfe, RPS Drive 7
• 2009-03-07: Found n = 489194, Peter Benson, RPS Drive 7
• 2009-03-01: Found n = 453293, David Metcalfe, RPS Drive 7
• 2009-02-24: Found n = 457647, Predrag Minovic, RPS Drive 7
• 2009-02-10: Found n = 407228, Even Stokkedalen, RPS Drive 7
• 2009-02-10: Found n = 397664, James P. Burt, RPS Drive 7
• 2009-02-06: Reserved by RPS Drive 7, for 360000 ≤ n ≤ 600000