Riesel primes of the form 1487•2n-1

Current data

k , b : 1487 , 2 Count : 45 Nash : 2966 Max n : 1,000,000 Date : 2013-02-19

12, 16, 24, 32, 42, 46, 52, 66, 150, 196, 202, 276, 316, 384, 480, 490, 932, 2066, 2250, 3112, 3120, 4204, 4654, 5706, 5776, 8062, 11350, 11904, 13310, 18814, 30646, 31086, 59056, 78948, 96834, 100770, 118882, 295712, 356506, 392568, 412806, 475980, 524264, 533256, 698416

History

• 2013-02-19: Checked to n = 1000000, NPLB Drive 10, released
• 2011-04-18: Found n = 698416, Gary Barnes
• 2009-06-06: Checked to n = 350000, NPLB Drive 9B, released
• 2009-04-17: Found n = 533256, Brian Lody
• 2009-04-13: Found n = 524264, Vaughan Davies
• 2009-04-07: Checked to n = 500000, NPLB Drive 8, released
• 2009-03-31: Reserved by NPLB Drive 10, for 500000 ≤ n ≤ 1000000
• 2009-02-27: Found n = 475980, Vaughan Davies
• 2009-01-26: Found n = 412806, Brian Lody
• 2009-01-25: Checked to n = 200000, NPLB Drive 9A, released
• 2009-01-24: Found n = 392568, James P. Burt
• 2009-01-23: Reserved by NPLB Drive 9B, for 200000 ≤ n ≤ 350000
• 2009-01-05: Reserved by NPLB Drive 9A, for 50000 ≤ n ≤ 200000
• 2008-12-30: Reserved by NPLB Drive 8, for 350000 ≤ n ≤ 500000
• 2008-11-02: Found n = 356506, Chris Chatfield