Riesel primes of the form 663•2n-1

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

Current data

k , b : 663 , {{{Rb}}} Count : 48 Nash : 2792 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 4, 11, 14, 15, 19, 24, 31, 38, 55, 70, 71, 143, 163, 176, 304, 367, 658, 1534, 1727, 2288, 4396, 5807, 10294, 10780, 10958, 14574, 17771, 38088, 39728, 46931, 51844, 58031, 70284, 71159, 92358, 137471, 140627, 147247, 244299, 259524, 288139, 425478, 473420, 684374, 762428, 1009098, 1368094

[[Category:Riesel {{{Rb}}}|#.....00663]]

History

• 2014-11-03: Found n = 1368094, Göran Schmidt
• 2012-02-18: Found n = 1009098, Lennart Vogel
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2010-10-04: Found n = 762428, Gary Barnes
• 2009-05-23: Found n = 684374, David James
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
• 2008-06-05: Found n = 473420, Bruce E. Slade
• 2008-05-08: Found n = 425478, Bruce E. Slade
• 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
• 2006-01-27: Found n = 259524, Steven Harvey
• 2006-01-25: Found n = 244299, Steven Harvey
• 2003-05-18: Found n = 147247, Dennis Okon
• 2003-05-18: Found n = 140627, Dennis Okon
• 2003-05-18: Found n = 137471, Dennis Okon
• 2002-01-13: Found n = 92358, Kimmo Herranen