Riesel primes of the form 1955•2n-1

Current data

k , b : 1955 , 2 Count : 29 Nash : 1623 Max n : 1,000,000 Date : 2013-02-19

6, 10, 12, 30, 42, 48, 72, 108, 328, 990, 1138, 1206, 1792, 2688, 7230, 10486, 14122, 14670, 18232, 22846, 29800, 43552, 46728, 96966, 108042, 115638, 364156, 391522, 457290

History

• 2013-02-19: Checked to n = 1000000, NPLB Drive 10, released
• 2009-06-06: Checked to n = 350000, NPLB Drive 9B, released
• 2009-04-07: Checked to n = 500000, NPLB Drive 8, released
• 2009-03-31: Reserved by NPLB Drive 10, for 500000 ≤ n ≤ 1000000
• 2009-02-12: Found n = 457290, Brian Lody
• 2009-01-25: Checked to n = 200000, NPLB Drive 9A, released
• 2009-01-24: Found n = 391522, James P. Burt
• 2009-01-23: Reserved by NPLB Drive 9B, for 200000 ≤ n ≤ 350000
• 2009-01-22: Found n = 364156, Gary Barnes
• 2009-01-05: Reserved by NPLB Drive 9A, for 50000 ≤ n ≤ 200000
• 2008-12-30: Reserved by NPLB Drive 8, for 350000 ≤ n ≤ 500000
• 1998-07-31: Found n = 43552, Wendy Hecate Hartman