Riesel primes of the form 453•2n-1

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

Current data

k , b : 453 , 2 Type : 3 Count : 51 Nash : 3162 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 3, 4, 11, 15, 31, 38, 47, 48, 70, 71, 76, 78, 103, 123, 147, 234, 243, 466, 528, 775, 880, 938, 1126, 1160, 1222, 1816, 1906, 2403, 2731, 3838, 3932, 4491, 10002, 11024, 22783, 68632, 96754, 149010, 170088, 176860, 191148, 411246, 416015, 421743, 447535, 530675, 545863, 1036971, 1144428, 1283560

History

• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2013-07-28: Found n = 1283560, Gary Barnes
• 2012-09-22: Found n = 1144428, Lennart Vogel
• 2011-09-02: Found n = 1036971, Chris Chatfield
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-11-12: Found n = 545863, Gary Barnes
• 2008-08-30: Found n = 530675, Carlos Eduardo Pinho
• 2008-05-25: Found n = 447535, Glenn C. Kaiser
• 2008-05-04: Found n = 421743, Gary Barnes
• 2008-04-20: Found n = 416015, Karsten Bonath
• 2008-04-14: Found n = 411246, Carlos Eduardo Pinho
• 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
• 2004-10-11: Found n = 191148, Peter O'braian
• 2004-08-16: Found n = 176860, Steven Harvey
• 2004-07-26: Found n = 170088, Steven Harvey
• 2002-03-04: Found n = 96754, Kimmo Herranen