Riesel primes of the form 27297•2n-1

Current data

k , b : 27297 , 2 Type : 3 Count : 24 Nash : 1861 Max n : 50,000 Date : 2020-08-30

6, 12, 20, 69, 180, 236, 549, 1064, 1305, 1350, 1710, 1920, 2460, 2933, 5064, 7752, 13028, 17936, 22749, 23352, 23544, 30149, 32910, 357213

History

• 2020-08-30: Checked to n = 50000, Alexander Jones
• 2011-11-23: Checked to n = 1007, Gary Barnes
• 2008-07-02: Found n = 357213, Chris Chatfield
• 1989-12: Found n = 7752, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown