Riesel primes of the form 433•2n-1

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

Current data

k , b : 433 , {{{Rb}}} Count : Attention! Parameter RCount=23 not given! Nash : 1522 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 27, 39, 71, 99, 307, 327, 487, 539, 931, 1103, 1279, 2295, 2763, 3615, 6815, 15779, 21375, 189431, 284943, 431115, 1259831, 1583059

[[Category:Riesel {{{Rb}}}|#.....00433]]

History

• 2018-11-28: Found n = 1583059, Dmitry Domanov
• 2013-06-27: Found n = 1259831, Gary Barnes
• 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
• 2008-05-13: Found n = 431115, Carlos Eduardo Pinho
• 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
• 2005-02-27: Found n = 284943, Peter O'braian
• 2004-10-12: Found n = 189431, Steven Harvey