Riesel primes of the form 675•2n-1

Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

k , b : 675 , 2 Type : 315 Count : 79 Nash : 4141 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 3, 4, 5, 7, 9, 10, 15, 16, 23, 26, 29, 32, 39, 72, 80, 94, 121, 125, 133, 149, 159, 175, 285, 352, 365, 442, 449, 562, 607, 1143, 1165, 1324, 1870, 2621, 4297, 4682, 5890, 6755, 7956, 8283, 8882, 11510, 11661, 16455, 23353, 25144, 25575, 27206, 39962, 48779, 55972, 67456, 73473, 74604, 77122, 78915, 120916, 123649, 219149, 240861, 265094, 339724, 458557, 466442, 529997, 578746, 599539, 603636, 653795, 859407, 1061510, 1080859, 1089273, 1476887, 1665152, 1949015, 1982779, 2149214

History

• 2024-01-02: Found n = 2149214, Göran Schmidt
• 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2023-01-17: Found n = 1982779, Max Dettweiler
• 2023-01-12: Found n = 1949015, Max Dettweiler
• 2022-02-13: Found n = 1665152, Gary Barnes
• 2017-09-28: Found n = 1476887, Ian M. Gunn
• 2012-03-25: Found n = 1089273, Max Dettweiler
• 2012-03-17: Found n = 1080859, Max Dettweiler
• 2012-03-01: Found n = 1061510, Brian Lody
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2010-12-14: Found n = 859407, Brian Lody
• 2009-05-06: Found n = 653795, Vaughan Davies
• 2008-12-27: Found n = 603636, Gary Barnes
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
• 2008-12-14: 599539 confirmed, Carlos Eduardo Pinho
• 2008-12-12: 578746 confirmed, Ian M. Gunn
• 2008-08-10: 529997 confirmed, Lennart Vogel
• 2008-06-03: 466442 confirmed, James P. Burt
• 2008-05-25: 458557 confirmed, Gary Barnes
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2007-03-11: Found n = 599539, Peter Benson
• 2007-03-02: Found n = 578746, Peter Benson
• 2007-02-04: Found n = 529997, Peter Benson
• 2007-01-13: Found n = 466442, Peter Benson
• 2007-01-11: Found n = 458557, Peter Benson
• 2006-12-30: Found n = 339724, Peter Benson
• 2006-12-19: Found n = 265094, Peter Benson
• 2004-12-24: Found n = 219149, Steven Harvey
• 2003-08-11: Found n = 123649, Steven Harvey
• 2003-08-11: Found n = 120916, Steven Harvey
• 1998-02-21: Found n = 16455, Yves Gallot