Riesel primes of the form 937•2n-1

Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

k , b : 937 , 2 Count : 33 Nash : 1484 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 5, 17, 25, 81, 97, 105, 173, 273, 293, 457, 633, 705, 1193, 1337, 4285, 4605, 9761, 11845, 21445, 22033, 46517, 51701, 57785, 58477, 99265, 101201, 251817, 310953, 352005, 479725, 662181, 707457

History

• 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
• 2009-08-09: Found n = 707457, Ian M. Gunn
• 2009-03-28: Found n = 662181, Ian M. Gunn
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
• 2008-06-21: Found n = 479725, Lennart Vogel
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-02-15: Found n = 352005, 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
• 2005-03-01: Found n = 251817, Peter Benson
• 2003-01-10: Found n = 101201, Steven Harvey
• 2002-02-13: Found n = 99265, Kimmo Herranen