Riesel primes of the form 67531•2n-1

Current data

k , b : 67531 , {{{Rb}}} Count : 26 Nash : 1391 Max n : 50,000 Date : 2020-09-11

21, 31, 33, 43, 55, 87, 105, 141, 145, 147, 183, 325, 393, 415, 645, 891, 1093, 1303, 1767, 2815, 9267, 17655, 18793, 22515, 30687, 538755

[[Category:Riesel {{{Rb}}}|#.....67531]][[Category:Riesel {{{Rb}}} Missing-range‎|#.....67531]]

History

• 2020-09-11: Checked to n = 50000, Karsten Bonath
• 2007-01-11: Found n = 538755, Orazio Chiovato