Riesel primes of the form 253•2n-1

Reserved! This sequence is currently reserved by: Dmitry Domanov

Current data

k , b : 253 , {{{Rb}}} Count : Attention! Parameter RCount=5 not given! Nash : 185 Max n : 6,000,000 Date : 2020-03-11 Reserved : Dmitry DomanovDmitry Domanov/Reserved

71, 1007, 27623, 1722623, 1965215

[[Category:Riesel {{{Rb}}}|#.....00253]][[Category:Riesel {{{Rb}}} Low-weight|#.....00253]]

History

• 2020-03-11: Checked to n = 6000000, Dmitry Domanov
• 2015-05-06: Checked to n = 5000000, Dmitry Domanov
• 2013-09-30: Checked to n = 4000000, Dmitry Domanov
• 2013-09-03: Checked to n = 3990000, Dmitry Domanov
• 2012-12-30: Found n = 1965215, Dmitry Domanov, doublechecked
• 2012-09-19: Checked to n = 3000000, Dmitry Domanov
• 2010-03-14: Reserved by Dmitry Domanov
• 2007-07-23: Checked n = 1165000 - 1750000, Predrag Minovic
• 2007-04-20: Found n = 1722623, Predrag Minovic
• 1998-11-26: Found n = 27623, Wilfrid Keller