Riesel primes of the form 411•2n-1

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

Current data

k , b : 411 , 2 Type : 3 Count : 63 Nash : 2930 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 5, 11, 13, 14, 15, 19, 23, 25, 29, 49, 50, 83, 85, 89, 234, 310, 361, 774, 814, 823, 853, 929, 1021, 1141, 1273, 1369, 1395, 2573, 2895, 2963, 7811, 8215, 8725, 9601, 10589, 10745, 12289, 13255, 14710, 20563, 40625, 49374, 53135, 70834, 79645, 83525, 85075, 98261, 112273, 144350, 168039, 213603, 312923, 439453, 503501, 731153, 746871, 762935, 1025451, 1318421, 1363094, 1607574

History

• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2021-05-09: Found n = 1607574, Göran Schmidt
• 2014-08-30: Found n = 1363094, Vaughan Davies
• 2014-04-05: Found n = 1318421, Timothy Sorbera
• 2011-08-18: Found n = 1025451, Chris Chatfield
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2010-05-01: Found n = 762935, Vaughan Davies
• 2010-02-01: Found n = 746871, Karsten Bonath
• 2009-10-25: Found n = 731153, Gary Barnes
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-07-19: Found n = 503501, Gary Barnes
• 2008-05-19: Found n = 439453, Gary Barnes
• 2008-04-05: Found n = 312923, Gary Barnes
• 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
• 2004-09-23: Found n = 213603, Peter O'braian
• 2004-03-04: Found n = 168039, Peter O'braian
• 2001-03-16: Found n = 112273, Kimmo Herranen
• 2001-03-14: Found n = 98261, Kimmo Herranen
• 2001-03-14: Found n = 85075, Kimmo Herranen
• 2001-03-14: Found n = 83525, Kimmo Herranen
• 2001-03-14: Found n = 79645, Kimmo Herranen
• 2001-03-11: Found n = 70834, Kimmo Herranen