Riesel primes of the form 459•2n-1

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

Current data

k , b : 459 , 2 Type : 3 Count : 42 Nash : 2260 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 8, 9, 11, 24, 32, 123, 153, 155, 209, 269, 333, 449, 471, 515, 780, 785, 1349, 2012, 3453, 3633, 8529, 9560, 10284, 20984, 35595, 36776, 38388, 84032, 108483, 110744, 242715, 307676, 380984, 408365, 542204, 571508, 657272, 782168, 1387776, 1448999, 1917881

History

• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2022-06-20: Found n = 1917881, Bruce Marler
• 2017-02-08: Found n = 1448999, Timothy Sorbera
• 2014-11-29: Found n = 1387776, Dmitry Domanov
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2010-05-01: Found n = 782168, Lennart Vogel
• 2009-03-14: Found n = 657272, Gary Barnes
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-11-26: Found n = 571508, Ian M. Gunn
• 2008-10-24: Found n = 542204, Timothy Sorbera
• 2008-03-25: Checked to n = 333200, NPLB Drive 2
• 2008-03-15: Found n = 380984, James P. Burt
• 2008-03-12: Found n = 408365, James P. Burt
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2005-04-11: Found n = 242715, Steven Harvey
• 2002-05-29: Found n = 110744, Peter Grobstich
• 2002-05-29: Found n = 108483, Peter Grobstich
• 2001-02-25: Found n = 84032, Kimmo Herranen
• 1993-12-01: Found n = 8529, Harvey Dubner