Riesel primes of the form 273•2n-1

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

Current data

k , b : 273 , 2 Type : 3 Count : 60 Nash : 3029 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 6, 10, 15, 22, 26, 31, 42, 47, 98, 107, 123, 126, 175, 178, 203, 223, 230, 239, 279, 371, 402, 519, 607, 755, 830, 871, 927, 980, 1527, 1770, 2007, 2218, 2247, 2250, 3982, 4367, 4510, 9716, 13018, 20906, 26340, 40186, 63332, 84599, 119743, 156155, 206118, 238687, 522287, 742930, 930663, 1209170, 1352006, 1356347, 1365107, 1766747, 1788926, 2024810, 6963847

History

• 2024-04-23: 2024810 confirmed, Gary Barnes, NPLB K300 Drive 1
• 2024-04-23: Reserved by NPLB K300 Drive 1 for n > 2000000
• 2022-11-16: Found n = 6963847, Ryan Propper
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2020-09-16: Checked to n = 2083000, Paul Vanderveen, released
• 2020-07-12: Found n = 2024810, Paul Vanderveen
• 2020-06-18: Reserved by Paul Vanderveen
• 2013-03-29: Checked to n = 2000000, Peter Benson, released
• 2013-03-25: Found n = 1788926, Peter Benson
• 2013-03-24: Found n = 1766747, Peter Benson
• 2013-03-21: Found n = 1365107, Peter Benson
• 2013-03-21: Found n = 1356347, Peter Benson
• 2013-03-21: Found n = 1352006, Peter Benson
• 2013-03-20: Reserved by Peter Benson from n=1300000
• 2012-05-14: Checked to n = 1300000, James P. Burt, released
• 2012-04-05: Found n = 1209170, James P. Burt
• 2011-12-31: Checked to n = 1100000, James P. Burt
• 2011-12-10: Reserved by James P. Burt from n=1000000
• 2009-07-30: Reserved by Borys Jaworski for sieving only n=1000000-5000000
• 2008-07-04: Checked to n = 1000000, RPS Drive 5, released
• 2008-04-05: Found n = 930663, Larry Soule, RPS Drive 5
• 2007-09-20: Found n = 742930, Predrag Minovic, RPS Drive 5
• 2007-01-29: Found n = 522287, David Metcalfe, RPS Drive 5
• 2006-11-12: Reserved by RPS Drive 5, for n > 260000
• 2005-03-06: Found n = 238687, James S. Griffin
• 2005-01-15: Found n = 206118, Steven Harvey
• 2004-02-24: Found n = 156155, Darren Wallace
• 2003-07-30: Found n = 119743, Michael Ian Hartley
• 1999-02-17: Found n = 40186, Christ van Willegen
• 1998-10-27: Found n = 26340, Peter Dodson
• 1998-12-09: Found n = 20906, Wilfrid Keller