Riesel primes of the form 31885•2n-1

Current data

k , b : 31885 , {{{Rb}}} Count : 24 Nash : 1574 Max n : 50,000 Date : 2020-08-30

9, 19, 27, 31, 37, 69, 261, 357, 591, 699, 929, 951, 1115, 4221, 5469, 7311, 10129, 17359, 20407, 21331, 22717, 25081, 26259, 357175

[[Category:Riesel {{{Rb}}}|#.....31885]][[Category:Riesel {{{Rb}}} Missing-range‎|#.....31885]]

History

• 2020-08-30: Checked to n = 50000, Alexander Jones
• 2011-11-23: Checked to n = 1007, Gary Barnes
• 2009-06-26: Found n = 357175, Chris Chatfield