Riesel primes of the form 213•2n-1

Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1.

Current data

k , b : 213 , 2 Type : 3 Count : 49 Nash : 2538 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/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

History

• 2024-07-01: 2493004 confirmed, Florian Piesker, NPLB K300 Drive 1
• 2024-05-22: 2328530 confirmed, Gary Barnes, NPLB K300 Drive 1
• 2024-05-14: 2277870 confirmed, Göran Schmidt, NPLB K300 Drive 1
• 2024-04-26: 2064426 confirmed, Gary Barnes, NPLB K300 Drive 1
• 2024-04-23: Reserved by NPLB K300 Drive 1 for n > 2000000
• 2021-03-27: Checked to n = 2000000, Gary Barnes, double-check n=1000000-1650000, released
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 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
• 2008-07-04: Checked to n = 1000000, RPS Drive 5, released
• 2007-10-08: Found n = 760942, David Metcalfe, RPS Drive 5
• 2007-08-02: Found n = 709727, David Metcalfe, RPS Drive 5
• 2006-11-23: Found n = 303670, Predrag Minovic, RPS Drive 5
• 2006-11-12: Reserved by RPS Drive 5, for n > 250000
• 2004?: Checked to n = 250000, Mark Anderson, released
• 2004-07-09: Found n = 171154, Mark Anderson
• 2004-06-04: Reserved by Mark Anderson, for n ≤ 250000
• 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 Dodson
• 1989: Found n = 23814, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown