Riesel primes of the form 73•2n-1

Current data

k , b : 73 , 2 Type : Low Count : 22 Nash : 800 Max n : 3,000,000 Date : 2024-07-28

7, 11, 19, 71, 79, 131, 1167, 1191, 6771, 12627, 17947, 20079, 26347, 40327, 41231, 69379, 109587, 193559, 212451, 499391, 783831, 1075107

History

• 2024-07-28: Reservation dropped, Matthias Baur
• 2022-10-08: Checked to n = 3000000, Matthias Baur
• 2022-05-30: Checked to n = 2800000, Matthias Baur
• 2022-04-03: Checked to n = 2500000, Matthias Baur
• 2021-08-02: Checked n = 2000000 - 2200000, Matthias Baur
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2021-02-25: Reserved by Matthias Baur
• 2013-01-12: Checked to n = 2000000, James P. Burt
• 2012-05-31: Checked to n = 1830000, James P. Burt
• 2011-05-07: Checked to n = 1600000, James P. Burt
• 2011-04-25: Reserved by James P. Burt
• 2010-11-19: Checked to n = 1090000, Borys Jaworski, released
• 2010-11-18: Found n = 1075107, Borys Jaworski
• 2010-11-08: Reserved by Borys Jaworski from n=1000000
• 2009-07-30: Reserved by Borys Jaworski for sieving only n=2000000-5000000
• 2009-01-09: Checked n = 1652131 - 1661751, Peter Benson
• 2007-02-20: Checked to n = 1000000, Predrag Minovic, released
• 2006-10-13: Checked to n = 804000, Predrag Minovic
• 2006-08-13: Found n = 783831, Predrag Minovic
• 2006-02-28: Checked to n = 462000, Predrag Minovic
• 2006-02-27: Found n = 499391, Predrag Minovic
• 2006-02-08: Reserved by Predrag Minovic
• 2004-05-25: Checked to n = 200000, Thomas Masser
• 2004-05-13: Found n = 193559, Thomas Masser
• 2003-10-12: Found n = 212451, Raffi Chaglassian
• 1999-10-18: Found n = 41231, Tom Kuechler
• 1999-10-18: Found n = 40327, Tom Kuechler
• 1998-08-04: Found n = 26347, Wilfrid Keller
• 1998-08-03: Found n = 20079, Wilfrid Keller
• 1998-08-03: Found n = 17947, Wilfrid Keller
• 1994: Found n = 6771, Harvey Dubner