Riesel primes of the form 679•2n-1

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

Current data

k , b : 679 , 2 Count : 23 Nash : 1614 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 5, 79, 81, 171, 275, 579, 619, 645, 905, 1851, 2035, 2249, 3813, 4579, 44249, 97971, 106631, 112501, 149495, 539605, 589659, 845103

History

• 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2010-12-02: Found n = 845103, 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
• 2008-12-13: Found n = 589659, Gary Barnes
• 2008-10-30: Found n = 539605, Gary Barnes
• 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
• 2003-04-16: Found n = 112501, Steven Harvey
• 2002-12-16: Found n = 106631, Steven Harvey
• 2002-02-21: Found n = 97971, Andrew J. Rupinski