Riesel primes of the form 2259•2n-1

Current data

k , b : 2259 , 2 Type : 3 Count : 57 Nash : 3437 Max n : 1,310,000 Date : 2022-12-24

1, 5, 7, 12, 13, 15, 16, 21, 31, 39, 40, 63, 79, 84, 109, 113, 135, 175, 216, 220, 264, 293, 333, 400, 453, 912, 951, 1057, 1229, 1977, 2245, 2543, 3152, 3255, 4089, 5060, 6777, 9927, 13173, 15249, 16567, 27805, 42223, 45773, 50064, 67516, 68223, 94937, 123864, 126437, 138279, 158505, 440977, 529340, 1075969, 1165204, 4746735

History

• 2022-12-24: Found n = 4746735, Ryan Propper
• 2015-05-18: Checked n = 600000 - 700000, Karsten Bonath
• 2015-04-20: Checked to n = 1310000, RPS Drive 12
• 2013-09-13: Found n = 1165204, Lennart Vogel, RPS Drive 12
• 2013-08-31: Found n = 1075969, Lennart Vogel, RPS Drive 12
• 2013-08-30: Checked to n = 1025000, RPS Drive 11, released
• 2013-08-28: Reserved by RPS Drive 12, n ≥ 1025000
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-31: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2011-09-03: Reserved by RPS Drive 11, for n ≥ 666666
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-10-19: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-01-30: Found n = 529340, Gary Barnes, NPLB Drive 11
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-12-18: Checked n = 20000 - 50000, Karsten Bonath
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-07-09: Found n = 440977, 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