Riesel primes of the form 537•2n-1

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

Current data

k , b : 537 , 2 Type : 3 Count : 61 Nash : 2596 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

5, 6, 9, 13, 16, 21, 26, 28, 32, 48, 61, 76, 77, 100, 102, 121, 126, 208, 241, 245, 440, 581, 748, 845, 1221, 1357, 2201, 2321, 3120, 3126, 3229, 3402, 4288, 5061, 5260, 5876, 6109, 6181, 6510, 7409, 8088, 8325, 11330, 15865, 22109, 27402, 52376, 56777, 58881, 73805, 75973, 92736, 102648, 204132, 351529, 431400, 965096, 1796196, 1999105, 2153392, 2196693

History

• 2022-12-12: Found n = 2196693, Florian Piesker
• 2022-11-15: Found n = 2153392, Florian Piesker
• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2022-08-09: Found n = 1996865, Florian Piesker
• 2022-04-26: Found n = 1796196, Florian Piesker
• 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 = 965096, Ian M. Gunn
• 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 = 431400, Bruce E. Slade
• 2008-03-25: Checked to n = 333200, NPLB Drive 2
• 2008-02-14: Found n = 351529, Chris Chatfield
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2004-12-02: Found n = 204132, Steven Harvey
• 2002-10: Found n = 102648, Steven Harvey
• 2002-01-04: Found n = 92736, Kimmo Herranen