Riesel primes of the form 5115•2n-1

Current data

k , b : 5115 , 2 Type : 315 Count : 68 Nash : 3593 Max n : 700,000 Date : 2025-05-18

4, 5, 9, 14, 26, 30, 40, 45, 58, 63, 68, 77, 84, 108, 113, 114, 137, 169, 183, 220, 225, 277, 297, 381, 813, 878, 1505, 1860, 1884, 2165, 3628, 5133, 5688, 7537, 9206, 9471, 9728, 14081, 15214, 16377, 18496, 19292, 22170, 22529, 33596, 36215, 37341, 40477, 41297, 44808, 46157, 48077, 61535, 72368, 72604, 93244, 101497, 122014, 223280, 259854, 278820, 294397, 330328, 340209, 423972, 469014, 504969, 667935

History

• 2025-05-18: Checked n = 100000 - 700000, Carlos Eduardo Pinho, released
• 2025-05-18: Checked n = 10000 - 100000, Gary Barnes, double-check n = 10000 - 20000, released
• 2010-06-11: Found n = 667935, Ian M. Gunn
• 2009-12-07: Found n = 504969, 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