Riesel primes of the form 697942245•2n-1

Current data

k , b : 697942245 , 2 Type : 3152145 Count : 109 Nash : 5663 Max n : 400,000 Date : 2025-04-24

2, 6, 8, 10, 11, 13, 18, 19, 21, 26, 43, 46, 55, 65, 69, 79, 95, 114, 116, 118, 157, 197, 213, 229, 252, 254, 267, 274, 285, 315, 319, 321, 495, 513, 544, 726, 761, 817, 864, 940, 1083, 1104, 1125, 1390, 1496, 1584, 1837, 2128, 2302, 2363, 2480, 2570, 2635, 3356, 3444, 3530, 3544, 3546, 3580, 3615, 4139, 5499, 5658, 6248, 6554, 6738, 6892, 7522, 9866, 9972, 10459, 14195, 15073, 15158, 17525, 19197, 19561, 20310, 22795, 24049, 28625, 29377, 34253, 34858, 34918, 34937, 36402, 38265, 42660, 44827, 46943, 49419, 55967, 63569, 83813, 89305, 99298, 101247, 105927, 139049, 156477, 159379, 181529, 200875, 203135, 227785, 322681, 327686, 378553

History

• 2025-04-24: Checked n = 1 - 201700, Gary Barnes, double-check n = 200000 - 201700, released
• 2007-07-08: Checked n = 200000 - 201700, Karsten Bonath
• 2007-07-08: Found n = 200875, Karsten Bonath
• 2006-08-02: Checked n = 201700 - 400000, RPS Drive 1, released
• 2006-05-26: Found n = 378553, Larry Soule, RPS Drive 1
• 2006-05-24: Found n = 322681, John Schlesser, RPS Drive 1
• 2006-03-12: Found n = 327686, Larry Soule, RPS Drive 1
• 2005-11-22: Found n = 227785, Predrag Minovic, RPS Drive 1
• 2005-11-09: Found n = 203135, Predrag Minovic, RPS Drive 1
• 2005-10-31: Reserved by RPS Drive 1 for n = 201700 - 400000