Riesel primes of the form 367•2n-1

Reserved! This sequence is currently part of Multi Reservation 26: NPLB Drive 19.

Current data

k , b : 367 , 2 Count : 26 Nash : 1290 Max n : 3,100,000 Date : 2024-08-15 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 5, 25, 45, 85, 117, 141, 653, 657, 821, 1265, 1433, 2665, 9253, 10057, 21765, 24253, 39177, 92021, 128945, 143777, 297505, 537553, 834573, 1352793, 2979033

History

• 2023-03-07: Reserved by NPLB Drive 19, for 3000000<n<4000000
• 2023-03-07: Checked to n = 3000000, NPLB Drive 16, released
• 2023-03-06: Found n = 2979033, Max Dettweiler
• 2022-06-03: Reserved by NPLB Drive 16, for 2000000<n<3000000
• 2014-12-28: Checked to n = 2000000, NPLB Maxi Drive 1, released
• 2014-08-20: Reserved by NPLB Maxi Drive 1, for 1610000<n<2000000
• 2013-06-24: Found n = 1352793, Karsten Bonath
• 2013-04-28: Reserved by NPLB Maxi Drive 1, for 1300000<n<2000000
• 2013-01-14: Reserved by NPLB Maxi Drive 1, for 1000000<n<1300000
• 2009-03-10: Checked to n = 1000000, Ian M. Gunn, released
• 2009-02-10: Found n = 834573, Ian M. Gunn
• 2009-01-29: Reserved by Ian M. Gunn for 600000<n<1000000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-09-15: Found n = 537553, Laurent Lucas
• 2008-03-06: 297505 confirmed, James P. Burt
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2005-04-01: Found n = 297505, Peter O'braian
• 2002-08-20: Found n = 143777, Dennis Okon
• 2002-08-20: Found n = 128945, Dennis Okon
• 2002-07-08: Found n = 92021, Andrew J. Rupinski