Riesel primes of the form 543•2n-1

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

Current data

k , b : 543 , 2 Type : 3 Count : 15 Nash : 1051 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

15, 27, 47, 63, 90, 104, 363, 1007, 1304, 1983, 104979, 412067, 609174, 683355, 1406895

History

• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2015-04-05: Found n = 1406895, Timothy Sorbera
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2009-05-14: Found n = 683355, David James
• 2009-01-01: Found n = 609174, Kent McArthur
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-04-02: Found n = 412067, Carlos Eduardo Pinho
• 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
• 2002-10: Found n = 104979, Steven Harvey