Riesel primes of the form 911•2n-1

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

Current data

k , b : 911 , {{{Rb}}} Count : 16 Nash : 841 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 10, 38, 50, 262, 722, 790, 1198, 6638, 13450, 22610, 40862, 65978, 223882, 444886, 615622

[[Category:Riesel {{{Rb}}}|#.....00911]][[Category:Riesel {{{Rb}}} Low-weight|#.....00911]]

History

• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
• 2009-01-12: Found n = 615622, 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
• 2008-05-24: Found n = 444886, Lennart Vogel
• 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
• 2005-03-11: Found n = 223882, Steven Harvey