Riesel primes of the form 413•2n-1

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

Current data

k , b : 413 , 2 Count : 45 Nash : 2070 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 6, 8, 10, 12, 22, 24, 48, 52, 232, 388, 452, 574, 1014, 1608, 1786, 2838, 2964, 3864, 12058, 12678, 16666, 19100, 21490, 28572, 31188, 39032, 42252, 72720, 74956, 83938, 125914, 130002, 173418, 177120, 205390, 211896, 259090, 411802, 786824, 1144580, 1381686, 1456498, 2327048, 2486596

History

• 2023-07-10: Found n = 2486596, Florian Piesker
• 2023-03-19: Found n = 2327048, Florian Piesker
• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2017-04-24: Found n = 1456498, Timothy Sorbera
• 2014-11-01: Found n = 1381686, Johnathan Chu
• 2012-09-22: Found n = 1144580, Lennart Vogel
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2010-05-10: Found n = 786824, Vaughan Davies
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-04-14: Found n = 411802, Karsten Bonath
• 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
• 2004-10-09: Found n = 259090, Peter O'braian
• 2004-10-09: Found n = 211896, Peter O'braian
• 2004-10-09: Found n = 205390, Peter O'braian
• 2004-10-09: Found n = 177120, Peter O'braian
• 2004-07-19: Found n = 173418, Steven Harvey
• 2003-07-05: Found n = 130002, John Dilick
• 2003-07-04: Found n = 125914, John Dilick
• 2001-03-15: Found n = 83938, Kimmo Herranen
• 2001-03-15: Found n = 74956, Kimmo Herranen
• 2001-03-15: Found n = 72720, Kimmo Herranen