Riesel primes of the form 963•2n-1

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

Current data

k , b : 963 , 2 Type : 3 Count : 42 Nash : 2022 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 3, 6, 8, 23, 42, 95, 107, 135, 206, 248, 320, 402, 452, 548, 603, 767, 1023, 1463, 1587, 1875, 1895, 2118, 4887, 11283, 14726, 14855, 19760, 21107, 24068, 27998, 38600, 42212, 83063, 108320, 148787, 234603, 254567, 456107, 766628, 799487, 1149272

History

• 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2012-04-23: Found n = 1149272, Lennart Vogel
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
• 2011-03-11: Found n = 799487, Karsten Bonath
• 2010-12-04: Found n = 766628, Karsten Bonath
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
• 2008-05-25: Found n = 456107, Lennart Vogel
• 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
• 2005-01-02: Found n = 254567, Peter Benson
• 2004-12-31: Found n = 234603, Peter Benson
• 2003-01-14: Found n = 108320, Steven Harvey