Riesel primes of the form 213•2n-1

Reserved! This sequence is currently reserved by: Gary Barnes

Current data

k , b : 213 , {{{Rb}}} Count : 49 Nash : 2538 Max n : 1,650,000 Date : 2021-03-20 Reserved : Gary BarnesGary Barnes/Reserved

4, 10, 19, 30, 36, 47, 80, 82, 92, 100, 103, 114, 126, 140, 144, 152, 170, 210, 264, 514, 726, 967, 1662, 2423, 3116, 3974, 4396, 5735, 6680, 6707, 9947, 23814, 24330, 43074, 43775, 77922, 98179, 120362, 171154, 303670, 709727, 760942, 1433675, 1632054, 1728847, 2064426, 2277870, 2328530, 2493004

[[Category:Riesel {{{Rb}}}|#.....00213]]

History

• 2021-03-27: Checked to n = 2000000, Gary Barnes, released
• 2021-03-20: Reserved by Gary Barnes, from n=1000000
• 2017-07-18: Found n = 2493004, Kristine Wozny
• 2017-06-03: Found n = 2328530, Kristine Wozny
• 2017-05-09: Found n = 2277870, Kristine Wozny
• 2017-05-01: Found n = 2064426, Kristine Wozny
• 2014-05-07: Found n = 1728847, Kristine Wozny
• 2014-02-28: Checked to n = 1650000, Kristine Wozny
• 2014-02-27: Found n = 1632054, Kristine Wozny
• 2013-12-05: Checked to n = 1500000, Kristine Wozny
• 2013-12-05: Found n = 1433675, Kristine Wozny
• 2013-10-03: Checked to n = 1300000, Kristine Wozny
• 2013-09-04: Checked to n = 1200000, Kristine Wozny
• 2013-08-29: Checked to n = 1160000, Kristine Wozny
• 2012-05-09: Checked to n = 1100000, Kristine Wozny
• 2011-04-25: Reserved by Kristine Wozny
• 2009-07-30: Reserved by Borys Jaworski from n=1000000
• 2007-10-08: Found n = 760942, David Metcalfe
• 2007-08-02: Found n = 709727, David Metcalfe
• 2006-11-23: Found n = 303670, Predrag Minovic
• 2004-07-09: Found n = 171154, Mark Anderson
• 1998-12-31: Found n = 98179, Christ van Willegen
• 1998-12-07: Found n = 77922, Christ van Willegen
• 1998-11-06: Found n = 43775, Joe Eversole
• 1998-10-26: Found n = 24330, Peter JH Dodson
• 1989: Found n = 23814, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown