Riesel primes of the form 9913•2n-1

Current data

k , b : 9913 , 2 Type : Low Count : 2 Nash : 118 Max n : 3,000,000 Date : 2021-06-23

1187, 8387

History

• 2021-06-23: Checked to n = 1000000, Gary Barnes, double-check, results included
• 2015-04-16: Checked to n = 2000000, James P. Burt
• 2014-06-30: Checked to n = 3000000, Dmitry Domanov
• 2007-07-14: Checked to n = 736000, James P. Burt
• 2007: Checked to n = 291000, Jocelyn Larouche
• 1992: Found n = 1187, Wilfred Keller