Riesel primes of the form 843•2n-1

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

Current data

k , b : 843 , 2 Type : 3 Count : 73 Nash : 3709 Max n : 2,170,000 Date : 2024-04-02 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 4, 6, 7, 10, 20, 24, 28, 36, 40, 44, 46, 68, 99, 104, 116, 235, 344, 428, 580, 592, 659, 748, 824, 1086, 1602, 1644, 1655, 1999, 2020, 2587, 3366, 4492, 4816, 6010, 6991, 8410, 10024, 10330, 12304, 12499, 13778, 14440, 16498, 23272, 23728, 25811, 28232, 31571, 42019, 50179, 63628, 85648, 104870, 149768, 160328, 188032, 196286, 233471, 270808, 298528, 303824, 352268, 378328, 406115, 578747, 598482, 636955, 880091, 918816, 924698, 1195408, 1453392

History

• 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2017-05-10: Found n = 1453392, Max Dettweiler
• 2012-06-14: Found n = 1195408, Brian Lody
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
• 2011-04-12: Found n = 924698, Stuart Mullage
• 2011-04-20: Found n = 918816, Chris Chatfield
• 2011-04-08: Found n = 880091, Lennart Vogel
• 2009-02-20: Found n = 636955, 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
• 2008-12-12: Found n = 578747, Gary Barnes
• 2008-12-09: Found n = 598482, Kent McArthur
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-03-15: Found n = 378328, James P. Burt
• 2008-03-11: Found n = 406115, James P. Burt
• 2008-03-05: Found n = 298528, Carlos Eduardo Pinho
• 2008-02-15: Found n = 352268, Chris Chatfield
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2005-07-01: Found n = 233471, Karsten Bonath
• 2004-08-18: Found n = 196286, Steven Harvey
• 2004-08-17: Found n = 188032, Steven Harvey
• 2002-11-10: Found n = 104870, Steven Harvey