Riesel primes of the form 299•2n-1

Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1.

Current data

k , b : 299 , 2 Count : 22 Nash : 1199 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 8, 12, 32, 52, 80, 84, 112, 140, 144, 532, 5388, 6308, 19752, 34456, 35820, 45780, 119852, 211324, 233188, 295640, 1355004

History

• 2024-04-23: Reserved by NPLB K300 Drive 1 for n > 2000000
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2013-01-12: Checked to n = 2000000, James P. Burt
• 2012-05-31: Checked to n = 1830000, James P. Burt
• 2011-12-10: Checked to n = 1600000, James P. Burt
• 2011-04-23: Checked to n = 1500000, James P. Burt
• 2009-10-21: Reserved by James P. Burt
• 2009-10-18: Checked to n = 1360000, Borys Jaworski released
• 2009-10-14: Found n = 1355004, Borys Jaworski
• 2009-09-30: Checked to n = 1320000, Borys Jaworski
• 2009-08-31: Checked to n = 1300000, Borys Jaworski
• 2009-07-31: Checked to n = 1280000, Borys Jaworski
• 2009-06-30: Checked to n = 1250000, Borys Jaworski
• 2009-05-31: Checked to n = 1230000, Borys Jaworski
• 2009-04-30: Checked to n = 1210000, Borys Jaworski
• 2009-03-27: Checked to n = 1190000, Borys Jaworski
• 2009-02-26: Checked to n = 1170000, Borys Jaworski
• 2009-01-29: Checked to n = 1140000, Borys Jaworski
• 2009-01-09: Checked to n = 1130000, Borys Jaworski
• 2008-07-06: Checked to n = 920000, Borys Jaworski
• 2008-03-01: Checked to n = 740000, Borys Jaworski
• 2008-02-09: Checked to n = 700000, Borys Jaworski
• 2008-02-03: Checked to n = 690000, Borys Jaworski
• 2008-01-12: Checked to n = 650000, Borys Jaworski
• 2008-01-06: Checked to n = 640000, Borys Jaworski
• 2007-10-01: Reserved by Borys Jaworski
• 2006-08-04: Found n = 295640, Larry Soule
• 2005-04-19: Found n = 233188, James S. Griffin
• 2005-01-23: Found n = 211324, Steven Harvey
• 1999-07-14: Found n = 119852, Janusz Szmidt
• 1999-03-08: Found n = 45780, Janusz Szmidt
• 1999-03-01: Found n = 35820, Janusz Szmidt
• 1999-03-01: Found n = 34456, Janusz Szmidt