Riesel primes of the form 7533•2n-1

Current data

k , b : 7533 , 2 Type : 3 Count : 32 Nash : 1670 Max n : 750,000 Date : 2023-02-17

8, 16, 32, 40, 50, 52, 128, 148, 230, 299, 302, 539, 755, 1030, 2452, 3272, 4010, 6052, 14960, 15746, 17972, 19556, 27332, 30266, 31700, 36608, 37618, 118091, 217286, 232388, 484406, 741440

History

• 2023-02-17: Checked n = 600000 - 750000, Alexander Jones, double-check, released
• 2023-01-29: Checked n = 500000 - 600000, Alexander Jones, double-check
• 2021-12-19: Checked n = 150000 - 500000, Alexander Jones
• 2021-10-11: Reserved by Alexander Jones
• 2021-04-16: Checked n = 100000 - 150000, Alexander Jones
• 2021-04-11: Checked n = 50000 - 100000, Alexander Jones
• 2011-01-16: 484406 confirmed, Chris Chatfield, Twin Prime Search 480000
• 2011-01-01: Checked n = 500000 - 750000?, Free-DC Drive 3, suspended
• 2010-12-10: Found n = 741440, Brian Lody, Free-DC Drive 3
• 2009-12-30: Found n = 484406, Peter Benson
• 2009-12-27: Checked n = 10000 - 50000, Peter Benson
• 2009-08-08: Reserved by Free-DC Drive 3 from n = 500000
• 2007-07-06: Checked n = 1 - 10000, Gary Barnes