Riesel primes of the form 2355•2n-1

Current data

k , b : 2355 , 2 Type : 315 Count : 59 Nash : 3275 Max n : 2,000,000 Date : 2024-04-14

2, 3, 12, 14, 15, 18, 26, 29, 31, 32, 34, 51, 58, 69, 82, 112, 154, 173, 174, 235, 247, 252, 268, 282, 319, 389, 412, 686, 762, 771, 934, 1222, 1459, 1558, 1714, 4789, 6048, 6198, 7021, 11052, 12274, 14234, 19733, 21547, 31236, 54526, 76734, 122726, 134138, 161597, 212837, 245846, 319806, 359949, 481236, 558309, 1085853, 1379854, 1571668

History

• 2024-04-14: Checked to n = 2000000, RPS Drive 7, released
• 2017-06-23: Found n = 1571668, Thomas Ritschel, RPS Drive 7
• 2014-02-06: Found n = 1379854, David Metcalfe, RPS Drive 7
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-10: Found n = 1085853, David Metcalfe, RPS Drive 7
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-31: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2011-09-13: Reserved to n = 2000000, RPS Drive 7
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-10-19: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-05-12: 558309 confirmed, Gary Barnes, NPLB Drive 11
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-12-18: Checked n = 20000 - 50000, Karsten Bonath
• 2009-09-09: 481236 confirmed, Gary Barnes, NPLB Drive 11
• 2009-08-22: Reserved to n = 1000000, RPS Drive 7
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000
• 2009-05-07: Found n = 558309, David Metcalfe, RPS Drive 7
• 2009-02-28: Found n = 481236, Peter Benson, RPS Drive 7
• 2009-02-06: Reserved by RPS Drive 7, for 360000 ≤ n ≤ 600000
• 1998-09-14: Found n = 21547, Yves Gallot