Riesel primes of the form 97•2n-1

Reserved! This sequence is currently reserved by: Thomas Ritschel

Current data

k , b : 97 , {{{Rb}}} Count : 12 Nash : 829 Max n : 5,000,000 Date : 2019-12-17 Reserved : Thomas RitschelThomas Ritschel/Reserved

1, 9, 45, 177, 585, 1409, 2617, 3465, 6981, 843205, 2374485, 4066717

[[Category:Riesel {{{Rb}}}|#.....00097]][[Category:Riesel {{{Rb}}} Low-weight|#.....00097]]

History

• 2019-12-17: Checked to n = 5000000, Thomas Ritschel
• 2019-09-28: Checked to n = 4000000, Thomas Ritschel
• 2019-09-27: Found n = 4066717, Thomas Ritschel
• 2018-09-12: Found n = 2374485, Thomas Ritschel
• 2018-05-23: Reserved by Thomas Ritschel, from n=2300000
• 2014-10-05: Checked to n = 2300000, Predrag Minovic, released
• 2013-01-04: Checked to n = 1920000, Predrag Minovic
• 2011-12-31: Checked to n = 1760000, Predrag Minovic
• 2011-04-12: Checked to n = 1670000, Predrag Minovic
• 2011-03-05: Checked to n = 1600000, Predrag Minovic
• 2011-01-13: Checked to n = 1500000, Predrag Minovic
• 2010-10-31: Checked to n = 1360000, Predrag Minovic
• 2010-09-05: Checked to n = 1230000, Predrag Minovic
• 2010-04-11: Checked to n = 1150000, Predrag Minovic
• 2010-02-11: Checked to n = 1120000, Predrag Minovic
• 2007-11-01: Checked n = 830000 - 930000, Predrag Minovic
• 2007-10-31: Reserved by Carlos Eduardo Pinho
• 2006-01-24: Found n = 843205, Predrag Minovic
• 1994: Found n = 6981, Harvey Dubner