Riesel primes of the form 541•2n-1

Reserved! This sequence is currently part of Multi Reservation 8: NPLB Drive 17.

Current data

k , b : 541 , {{{Rb}}} Count : 29 Nash : 954 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 7, 13, 25, 55, 61, 85, 135, 303, 307, 361, 475, 493, 1093, 1351, 1551, 4543, 4683, 5263, 7813, 8023, 10395, 57375, 78775, 80263, 107401, 135145, 408703, 1519465

[[Category:Riesel {{{Rb}}}|#.....00541]][[Category:Riesel {{{Rb}}} Low-weight|#.....00541]]

History

• 2017-11-12: Found n = 1519465, Timothy Sorbera
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-03-25: Checked to n = 333200, NPLB Drive 2
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2008-01-03: Found n = 408703, Michael Curtis
• 2002-10: Found n = 107401, Steven Harvey
• 2001-06-02: Found n = 80263, Kimmo Herranen
• 2001-06-02: Found n = 78775, Kimmo Herranen