Riesel primes of the form 357•2n-1

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

Current data

k , b : 357 , 2 Type : 3 Count : 66 Nash : 2941 Max n : 3,100,000 Date : 2024-08-15 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 4, 5, 10, 14, 30, 37, 40, 42, 157, 180, 302, 325, 369, 370, 424, 585, 758, 842, 1774, 2142, 2512, 3353, 3794, 3848, 4240, 5013, 6538, 7248, 7738, 9568, 9674, 13438, 14340, 15417, 16560, 21402, 25258, 39338, 47020, 67929, 71165, 81397, 94448, 108733, 113552, 115240, 120188, 131458, 172714, 201237, 209685, 226668, 263518, 334980, 355018, 510812, 672930, 1019004, 1301704, 1473125, 1756764, 1871600, 1934704, 2109585, 2568110

History

• 2023-02-03: Found n = 2568110, Max Dettweiler
• 2022-08-04: Found n = 2109585, Friedrich Steinwedel
• 2022-06-03: Reserved by NPLB Drive 16, for 2000000<n<3000000
• 2014-12-28: Checked to n = 2000000, NPLB Maxi Drive 1, released
• 2014-12-02: Found n = 1934704, Lennart Vogel
• 2014-11-17: Found n = 1871600, Göran Schmidt
• 2014-10-01: Found n = 1756764, Göran Schmidt
• 2014-08-20: Reserved by NPLB Maxi Drive 1, for 1610000<n<2000000
• 2013-09-30: Found n = 1473125, Ian M. Gunn
• 2013-05-21: Found n = 1301704, Ian M. Gunn
• 2013-04-28: Reserved by NPLB Maxi Drive 1, for 1300000<n<2000000
• 2013-01-14: Reserved by NPLB Maxi Drive 1, for 1020000<n<1300000
• 2010-10-09: Checked to n = 1020000, Serge Batalov, released, results included
• 2010-10-08: Found n = 1019004, Serge Batalov
• 2010-10-08: Reserved by Serge Batalov, for 1000000<n<1020000
• 2009-08-12: Reserved by NPLB Mini Drive 4, for 900000<n<1000000
• 2009-06-18: Reserved by NPLB Mini Drive 4, for 800000<n<900000
• 2009-05-29: Reserved by NPLB Mini Drive 4, for 700000<n<800000
• 2009-05-22: Checked to n = 700000, Gary Barnes, released
• 2009-05-20: Checked to n = 695000, Gary Barnes
• 2009-05-12: Checked to n = 680000, Gary Barnes
• 2009-05-09: Found n = 672930, Gary Barnes
• 2009-05-09: Checked to n = 672000, Gary Barnes
• 2009-05-05: Checked to n = 661000, Gary Barnes
• 2009-05-01: Checked to n = 652000, Gary Barnes
• 2009-04-27: Checked to n = 640000, Gary Barnes
• 2009-04-15: Reserved by Gary Barnes, for 620000<n<700000
• 2009-04-13: Checked to n = 620000, Karsten Bonath, released
• 2009-03-15: Reserved by Karsten Bonath, for 600000<n<620000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-06-06: 510812 confirmed, Carlos Eduardo Pinho
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2006-01-17: Found n = 510812, Peter O'braian
• 2005-05-16: Found n = 355018, Peter O'braian
• 2005-05-16: Found n = 334980, Peter O'braian
• 2005-04-25: Found n = 263518, Peter O'braian
• 2005-01-20: Found n = 226668, Peter O'braian
• 2005-01-06: Found n = 209685, Peter O'braian
• 2005-01-06: Found n = 201237, Peter O'braian
• 2003-02-28: Found n = 172714, Dennis Okon
• 2003-02-28: Found n = 131458, Dennis Okon
• 2003-02-28: Found n = 120188, Dennis Okon
• 2003-02-28: Found n = 115240, Dennis Okon
• 2003-02-28: Found n = 113552, Dennis Okon
• 2002-10: Found n = 108733, Steven Harvey
• 2001-03-02: Found n = 67929, Kimmo Herranen