Riesel primes of the form 765•2n-1

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

Current data

k , b : 765 , 2 Type : 315 Count : 66 Nash : 3809 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 7, 9, 10, 12, 18, 22, 25, 36, 49, 58, 78, 118, 147, 150, 168, 240, 280, 337, 394, 520, 577, 714, 798, 802, 1125, 1656, 1876, 2946, 4000, 4296, 5355, 6564, 8212, 8268, 8682, 9964, 10840, 11943, 12673, 12940, 13342, 17268, 17730, 19636, 19644, 20346, 24036, 24876, 28782, 47044, 52288, 54754, 54775, 81550, 108306, 109960, 124266, 259876, 274395, 344596, 779157, 987829, 1323402, 1460683, 1550239

History

• 2019-12-19: Found n = 1550239, Gary Barnes
• 2017-07-01: Found n = 1460683, Göran Schmidt
• 2014-07-04: Found n = 1323402, Max Dettweiler
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2011-01-20: Found n = 987829, Ricky L. Hubbard
• 2010-11-09: Found n = 779157, Brian Lody
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-02-05: Found n = 344596, Karsten Bonath
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2003-09-29: Found n = 124266, Steven Harvey
• 2002-12-24: Found n = 109960, Steven Harvey
• 2002-12-24: Found n = 108306, Steven Harvey
• 2002-07-11: Found n = 259876, Richard A. A. Heylen