Riesel primes of the form 265•2n-1

Current data

k , b : 265 , 2 Count : 39 Nash : 2008 Max n : 4,000,000 Date : 2021-03-21

11, 17, 19, 21, 37, 49, 59, 145, 163, 289, 587, 737, 1029, 1061, 1873, 2265, 3271, 3943, 5429, 6067, 6133, 6277, 10101, 10967, 11497, 18799, 27551, 34883, 37459, 44897, 74743, 113473, 323083, 763957, 856293, 2051155, 2258071, 3564373, 3765189

History

• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2019-03-04: Checked to n = 4000000, Thomas Ritschel, released
• 2018-12-31: Found n = 3765189, Thomas Ritschel
• 2018-11-27: Found n = 3564373, Thomas Ritschel
• 2018-08-31: Found n = 2258071, Thomas Ritschel
• 2018-08-13: Found n = 2051155, Thomas Ritschel
• 2018-06-18: Reserved by Thomas Ritschel, from n=2000000
• 2013-03-13: Checked to n = 2000000, Peter Benson, released
• 2013-03-08: Reserved by Peter Benson from n=1300000
• 2012-05-14: Checked to n = 1300000, James P. Burt, released
• 2011-12-31: Checked to n = 1100000, James P. Burt
• 2011-12-10: Reserved by James P. Burt from n=1000000
• 2009-07-30: Reserved by Borys Jaworski for sieving only n=1000000-5000000
• 2008-10-22: Checked to n = 1000000, NPLB Drive 4, released
• 2008-10-09: Found n = 856293, Gary Barnes, NPLB Drive 4
• 2008-09-24: Found n = 763957, Bruce E. Slade, Gary Barnes, NPLB Drive 4
• 2008-09-09: Reserved by NPLB Drive 4
• 2006-12-16: Checked to n = 600000, RPS Drive 4, released
• 2006-08-07: Found n = 323083, Larry Soule, RPS Drive 4
• 2006-07-28: Reserved by RPS Drive 4, for n = 260000 - 600000