Riesel primes of the form 2235•2n-1

Current data

k , b : 2235 , 2 Type : 315 Count : 41 Nash : 1977 Max n : 2,000,000 Date : 2024-04-14

4, 15, 16, 25, 28, 43, 178, 331, 1233, 1656, 1723, 2635, 3015, 3075, 4432, 5743, 5788, 6346, 6496, 9520, 17938, 18964, 19651, 25018, 29985, 30328, 34308, 42442, 43192, 50794, 87864, 89620, 113944, 117268, 127471, 139336, 166984, 203092, 220932, 537475, 994452

History

• 2024-04-14: Checked to n = 2000000, RPS Drive 7, released
• 2015-05-18: Checked n = 600000 - 700000, Karsten Bonath
• 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
• 2010-10-19: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-09-13: Found n = 994452, Predrag Minovic, RPS Drive 7
• 2010-02-18: 537475 confirmed, 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
• 2009-08-22: 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
• 2009-04-14: Found n = 537475, James P. Burt, RPS Drive 7
• 2009-02-06: Reserved by RPS Drive 7, for 360000 ≤ n ≤ 600000