Riesel primes of the form 1952775825•2n-1

Current data

k , b : 1952775825 , 2 Type : 3152145 Count : 117 Nash : 6493 Max n : 400,000 Date : 2025-04-24

4, 5, 16, 19, 23, 28, 36, 47, 55, 62, 64, 75, 82, 90, 96, 101, 111, 124, 130, 132, 144, 163, 169, 249, 251, 254, 279, 292, 296, 298, 309, 318, 325, 348, 364, 383, 391, 396, 420, 438, 444, 447, 457, 491, 532, 558, 560, 620, 691, 850, 899, 980, 1053, 1058, 1123, 1159, 1254, 1441, 1580, 1927, 2044, 2164, 2228, 2315, 2396, 2449, 2565, 3664, 4147, 4408, 4597, 4765, 4895, 4909, 5191, 5712, 6665, 6740, 7390, 8602, 11123, 11329, 12554, 15120, 16001, 16952, 19804, 21598, 22360, 22692, 24144, 27675, 28058, 28066, 29132, 33297, 35458, 44266, 46850, 48607, 55149, 73821, 81029, 83559, 90765, 100239, 149624, 165514, 182259, 189583, 195121, 221012, 223100, 224003, 351809, 366939, 381015

History

• 2025-04-24: Checked n = 1 - 201700, Gary Barnes, double-check n = 1 - 117419 & n = 200000 - 201700, released
• 2007-07-08: Checked n = 200000 - 201700, Karsten Bonath
• 2006-08-02: Checked n = 201700 - 400000, RPS Drive 1, released
• 2006-05-31: Found n = 381015, Larry Soule, RPS Drive 1
• 2006-05-02: Found n = 366939, Predrag Minovic, RPS Drive 1
• 2006-04-10: Found n = 351809, Predrag Minovic, RPS Drive 1
• 2006-01-18: Checked n = 1 - 117419, Larry Soule
• 2005-11-14: Found n = 221012, Predrag Minovic, RPS Drive 1
• 2005-11-12: Found n = 223100, Larry Soule, RPS Drive 1
• 2005-11-12: Found n = 224003, Tony Galvan, RPS Drive 1
• 2005-10-31: Reserved by RPS Drive 1 for n = 201700 - 400000