Riesel primes of the form 2325•2n-1

Current data

k , b : 2325 , 2 Type : 315 Count : 41 Nash : 2642 Max n : 2,000,000 Date : 2024-04-14

1, 4, 19, 44, 49, 52, 56, 85, 103, 107, 136, 166, 196, 652, 691, 815, 1147, 3623, 3637, 4160, 5332, 7712, 7729, 9467, 9590, 17287, 17503, 24769, 26383, 27316, 27910, 77623, 139859, 163304, 226619, 236203, 243811, 398692, 1366249, 1646536, 4713991

History

• 2024-04-14: Checked to n = 2000000, RPS Drive 7, released
• 2022-12-19: Found n = 4713991, Ryan Propper
• 2018-02-27: Found n = 1646536, Thomas Ritschel, RPS Drive 7
• 2014-01-31: Found n = 1366249, David Metcalfe, RPS Drive 7
• 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
• 2011-09-13: Reserved to n = 2000000, RPS Drive 7
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-03-26: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-12-18: Checked n = 20000-50000, Karsten Bonath
• 2009-08-22: Reserved to n = 1000000, RPS Drive 7
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-06-28: Checked n = 10000-20000, Thomas Ritschel
• 2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000
• 2009-02-10: Found n = 398692, James P. Burt, RPS Drive 7
• 2009-02-06: Reserved by RPS Drive 7, for 360000 ≤ n ≤ 600000