Riesel primes of the form 857•2n-1

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

Current data

k , b : 857 , {{{Rb}}} Count : 42 Nash : 2030 Max n : 2,170,000 Date : 2024-04-02 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 10, 12, 14, 22, 38, 50, 96, 170, 206, 214, 216, 224, 230, 236, 290, 346, 430, 616, 730, 1184, 1296, 1574, 2000, 2354, 2414, 3976, 8674, 9316, 24780, 34952, 50638, 51864, 191518, 292678, 315200, 431436, 485006, 601512, 616824, 779812, 1360690

[[Category:Riesel {{{Rb}}}|#.....00857]]

History

• 2014-10-23: Found n = 1360690, Lennart Vogel
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
• 2011-02-12: Found n = 779812, Karsten Bonath
• 2009-01-14: Found n = 616824, Ian M. Gunn
• 2008-12-22: Found n = 601512, 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
• 2008-06-15: Found n = 485006, Timothy Sorbera
• 2008-05-21: Found n = 431436, Raf Vaes
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 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 = 191518, Steven Harvey