Riesel primes of the form 615•2n-1

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

Current data

k , b : 615 , {{{Rb}}} Count : 81 Nash : 4548 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 2, 3, 4, 6, 9, 13, 14, 17, 20, 26, 28, 31, 33, 39, 49, 61, 73, 80, 122, 167, 179, 193, 197, 221, 339, 344, 352, 391, 539, 769, 801, 844, 933, 979, 1283, 1320, 1357, 1463, 1613, 1833, 2309, 2852, 3652, 4756, 5297, 6253, 7093, 7456, 7711, 10411, 15567, 18400, 22790, 23743, 24422, 28451, 30911, 33217, 40624, 41000, 48963, 51291, 60400, 60821, 75439, 77392, 126689, 173913, 257294, 306823, 405976, 419082, 527416, 571623, 571871, 615952, 651041, 742259, 1171032, 1235039

[[Category:Riesel {{{Rb}}}|#.....00615]]

History

• 2012-11-20: Found n = 1235039, Johnathan Chu
• 2012-05-04: Found n = 1171032, 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
• 2009-12-08: Found n = 742259, Bruce E. Slade
• 2009-05-05: 651041 confirmed, Vaughan Davies
• 2009-01-11: 615952 confirmed, David James
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
• 2008-11-27: Found n = 571871, Ian M. Gunn
• 2008-11-26: Found n = 571623, Ian M. Gunn
• 2008-08-31: Found n = 527416, Gary Barnes
• 2008-05-28: Found n = 651041, David Metcalfe
• 2008-04-23: Found n = 419082, Adam Sutton
• 2008-04-12: Found n = 615952, David Metcalfe
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-03-10: Found n = 405976, James P. Burt
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2005-02-21: Found n = 257294, James S. Griffin
• 2004-09-08: Found n = 173913, Steven Harvey
• 2003-07-29: Found n = 126689, Steven Harvey
• 2001-06-11: Found n = 77392, Dale Andrews
• 2001-06-11: Found n = 75439, Dale Andrews