Riesel primes of the form 371•2n-1

Current data

k , b : 371 , 2 Count : 40 Nash : 1435 Max n : 2,000,000 Date : 2014-12-28

2, 6, 10, 22, 30, 34, 54, 62, 78, 162, 178, 230, 422, 550, 1454, 1978, 2602, 2810, 3214, 3430, 10050, 15474, 22114, 28934, 70974, 72742, 80766, 162730, 164862, 203590, 276762, 571042, 596942, 773762, 898690, 993238, 1116274, 1180806, 1417702, 1717250

History

• 2014-12-28: Checked to n = 2000000, NPLB Maxi Drive 1, released
• 2014-09-19: Found n = 1717250, Timothy Sorbera
• 2014-08-20: Reserved by NPLB Maxi Drive 1, for 1610000<n<2000000
• 2013-08-10: Found n = 1417702, Ian M. Gunn
• 2013-04-28: Reserved by NPLB Maxi Drive 1, for 1300000<n<2000000
• 2013-03-24: Found n = 1180806, Ian M. Gunn
• 2013-03-04: Found n = 1116274, Stuart Mullage
• 2013-01-14: Reserved by NPLB Maxi Drive 1, for 1000000<n<1300000
• 2009-07-15: Checked to n = 1000000, Ian M. Gunn, released
• 2009-07-12: Found n = 993238, Ian M. Gunn
• 2009-06-28: Checked to n = 956000, Ian M. Gunn
• 2009-06-09: Found n = 898690, Ian M. Gunn
• 2009-06-09: Checked to n = 898000, Ian M. Gunn
• 2009-05-25: Checked to n = 860000, Ian M. Gunn
• 2009-05-12: Checked to n = 818000, Ian M. Gunn
• 2009-04-29: Found n = 773762, Ian M. Gunn
• 2009-04-23: Checked to n = 749000, Ian M. Gunn
• 2009-04-11: Checked to n = 699000, Ian M. Gunn
• 2009-03-08: Reserved by Ian M. Gunn, for 600000<n<1000000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-11-08: Found n = 596942, Carlos Eduardo Pinho
• 2008-11-04: Found n = 571042, Gary Barnes
• 2008-03-15: 276762 confirmed, Carlos Eduardo Pinho
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2005-03-26: Found n = 276762, Peter O'braian
• 2005-01-06: Found n = 203590, Peter O'braian
• 2004-05-03: Found n = 164862, Steven Harvey
• 2004-05-03: Found n = 162730, Steven Harvey
• 2001-03-01: Found n = 80766, Kimmo Herranen
• 2001-03-01: Found n = 72742, Kimmo Herranen
• 2001-03-01: Found n = 70974, Kimmo Herranen