Riesel primes of the form 237•2n-1

Current data

k , b : 237 , 2 Type : 3 Count : 53 Nash : 2404 Max n : 2,000,000 Date : 2013-02-24

2, 5, 9, 13, 17, 18, 25, 26, 30, 38, 69, 88, 89, 94, 133, 198, 205, 289, 360, 402, 438, 445, 498, 637, 914, 934, 973, 1265, 2965, 3813, 6096, 11560, 13977, 19816, 33673, 43128, 47869, 50370, 70649, 72809, 82453, 84904, 89210, 102618, 109334, 181610, 421862, 729654, 832053, 1366717, 1371630, 1503376, 1512216

History

• 2013-02-24: Checked to n = 2000000, Peter Benson, released
• 2013-02-16: Found n = 1512216, Peter Benson
• 2013-02-16: Found n = 1503376, Peter Benson
• 2013-02-16: Found n = 1371630, Peter Benson
• 2013-02-16: Found n = 1366717, Peter Benson
• 2013-02-15: Reserved by Peter Benson from n=1300000
• 2012-05-14: Checked to n = 1300000, James P. Burt, released
• 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 from n=1000000
• 2007-12-02: Found n = 832053, David Metcalfe
• 2007-08-26: Found n = 729654, David Metcalfe
• 2006-12-13: Found n = 421862, Larry Soule
• 2004-04-27: Found n = 181610, Thomas Masser
• 2000-05-15: Found n = 50370, Phil Carmody
• 2000-05-15: Found n = 47869, Phil Carmody
• 2000-05-05: Found n = 43128, Phil Carmody