Riesel primes of the form 437•2n-1

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

Current data

k , b : 437 , 2 Count : 54 Nash : 2780 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 4, 6, 8, 12, 16, 24, 30, 38, 40, 42, 46, 54, 68, 82, 86, 98, 262, 364, 372, 484, 546, 606, 834, 996, 1096, 1304, 1454, 1516, 1576, 2868, 3678, 4436, 7494, 8286, 11172, 12028, 12374, 19662, 21146, 27520, 42522, 43876, 44178, 57900, 69678, 87556, 138124, 254510, 461908, 850256, 937580, 978340, 1023678

History

• 2011-08-22: Found n = 1023678, Chris Chatfield
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2010-11-01: Found n = 978340, Vaughan Davies
• 2010-10-29: Found n = 937580, James P. Burt, found by (jamers)
• 2010-07-21: Found n = 850256, David Stevens
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-06-20: Found n = 461908, Karsten Bonath
• 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 = 254510, Peter O'braian
• 2001-06-13: Found n = 87556, Steven Harvey
• 2001-06-04: Found n = 69678, Steven Harvey