Riesel primes of the form 587•2n-1

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

Current data

k , b : 587 , 2 Count : 32 Nash : 1945 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 4, 6, 32, 42, 60, 76, 140, 256, 790, 1004, 1960, 2260, 2406, 5762, 7610, 7812, 9542, 9662, 10090, 10336, 15492, 28812, 36316, 50086, 62944, 156390, 227306, 364826, 550576, 605050, 1333710

History

• 2014-05-24: Found n = 1333710, Johnathan Chu
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2008-12-24: Found n = 605050, Timothy Sorbera
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-11-22: Found n = 550576, Ian M. Gunn
• 2008-03-25: Checked to n = 333200, NPLB Drive 2
• 2008-02-23: Found n = 364826, 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
• 2004-12-15: Found n = 227306, Steven Harvey