Riesel primes of the form 5265•2n-1

Current data

k , b : 5265 , 2 Type : 315 Count : 64 Nash : 3085 Max n : 700,000 Date : 2025-05-21

1, 2, 4, 19, 20, 25, 31, 41, 50, 58, 79, 106, 116, 148, 181, 211, 227, 232, 268, 415, 421, 490, 559, 614, 637, 676, 710, 787, 847, 914, 1670, 2018, 2626, 3614, 3712, 3775, 4339, 4757, 4900, 7850, 8147, 10912, 12211, 18118, 19679, 22007, 24115, 28258, 33946, 37324, 49169, 52142, 57548, 57889, 88531, 132164, 141239, 175126, 231950, 240871, 245158, 329786, 451808, 693781

History

• 2025-05-21: Checked n = 100000 - 700000, Carlos Eduardo Pinho, released
• 2025-05-21: Checked n = 10000 - 100000, Gary Barnes, double-check n = 10000 - 20000, released
• 2010-07-29: Found n = 693781, Ian M. Gunn
• 2009-03-27: Reserved by Ian M. Gunn for n = 400000 - 1000000
• 2009-01-13: Checked n = 10000 - 20000, Karsten Bonath
• 2007-07-06: Checked n = 1 - 10000, Gary Barnes