Riesel primes of the form 353•2n-1

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

Current data

k , b : 353 , 2 Count : 30 Nash : 1416 Max n : 3,100,000 Date : 2024-08-15 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 12, 14, 22, 36, 54, 64, 68, 76, 92, 108, 152, 644, 1244, 1852, 2504, 2614, 2644, 5612, 5878, 6876, 22278, 54022, 133572, 168932, 278588, 449918, 519312, 1114356, 2888332

History

• 2023-02-26: Found n = 2888332, Max Dettweiler
• 2022-06-03: Reserved by NPLB Drive 16, for 2000000<n<3000000
• 2014-09-23: Checked to n = 2000000, Ian M. Gunn, released
• 2014-08-05: Checked to n = 1900000, Ian M. Gunn
• 2014-04-30: Checked to n = 1750000, Ian M. Gunn
• 2013-09-02: Reserved by Ian M. Gunn for 1500000<n<2000000
• 2010-10-20: Checked to n = 1500000, Timothy Sorbera, released
• 2010-09-07: Checked to n = 1400000, Timothy Sorbera
• 2010-07-04: Checked to n = 1300000, Timothy Sorbera
• 2010-06-01: Checked to n = 1200000, Timothy Sorbera
• 2010-05-10: Found n = 1114356, Timothy Sorbera
• 2010-05-09: Checked to n = 1110000, Timothy Sorbera
• 2010-04-07: Reserved by Timothy Sorbera, for 1000000<n<1500000
• 2009-09-09: Checked to n = 1000000, Sven Stockmann, released
• 2009-08-17: Reserved by Sven Stockmann, for 850000<n<1000000
• 2009-07-06: Checked to n = 850000, Timothy Sorbera, released, results included
• 2009-06-22: Checked to n = 829000, Timothy Sorbera
• 2009-05-30: Checked to n = 819000, Timothy Sorbera
• 2009-05-17: Checked to n = 800000, Timothy Sorbera
• 2009-05-06: Checked to n = 780000, Timothy Sorbera
• 2009-03-28: Checked to n = 750000, Timothy Sorbera
• 2009-03-14: Checked to n = 720000, Timothy Sorbera
• 2009-03-05: Checked to n = 700000, Timothy Sorbera
• 2009-02-19: Checked to n = 672000, Timothy Sorbera
• 2009-02-06: Checked to n = 633000, Timothy Sorbera
• 2009-01-19: Reserved by Timothy Sorbera, for 600000<n<1000000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-06-23: Found n = 519312, Glenn C. Kaiser
• 2008-03-31: Found n = 449918, David James
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2004-06-09: Found n = 168932, Steven Harvey
• 2002-07-30: Found n = 133572, Kimmo Herranen