Riesel primes of the form 973•2n-1

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

Current data

k , b : 973 , {{{Rb}}} Count : 15 Nash : 1279 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

7, 19, 79, 131, 163, 2759, 14375, 22255, 45311, 52331, 237711, 330363, 357331, 1375759, 1420727

[[Category:Riesel {{{Rb}}}|#.....00973]]

History

• 2016-01-28: Found n = 1420727, Max Dettweiler
• 2014-11-20: Found n = 1375759, Göran Schmidt
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-02-18: Found n = 357331, Glenn C. Kaiser
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2005-01-25: Found n = 237711, Peter Benson