Riesel primes of the form 785•2n-1

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

Current data

k , b : 785 , 2 Count : 21 Nash : 1046 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

52, 320, 332, 736, 880, 1006, 1106, 1366, 1414, 1742, 4082, 5936, 6566, 7766, 8632, 10132, 21806, 94402, 184402, 451142, 1754836

History

• 2022-07-03: Found n = 1754836, Gary Barnes
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
• 2008-05-30: Found n = 451142, Karsten Bonath
• 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
• 2004-09-16: Found n = 184402, Steven Harvey
• 2002-07-18: Found n = 94402, Kimmo Herranen