Riesel primes of the form 15181•2n-1

Current data

k , b : 15181 , {{{Rb}}} Count : 21 Nash : 1784 Max n : 50,000 Date : 2020-07-30

3, 19, 21, 29, 31, 53, 61, 109, 201, 287, 343, 873, 955, 1453, 6689, 7779, 8429, 11643, 27921, 35331, 340113

[[Category:Riesel {{{Rb}}}|#.....15181]]

History

• 2020-07-30: Checked to n = 50000, Karsten Bonath
• 2007-07-26: Found n = 340113, Steve Anderegg