Riesel primes of the form 780427•2n-1

Reserved! This sequence is currently part of Multi Reservation 23: Riesel problem 4.

Current data

k , b : 780427 , 2 Type : Low Count : 0 Nash : 71 Max n : 2,000,000 Date : 2024-09-06 Reserved : Alexander JonesAlexander Jones/Reserved

History

• 2023-03-10: Reserved by Alexander Jones
• 2021-06-23: Checked to n = 1000000, Gary Barnes, double-check n=1-300000, results included
• 2007-08-28: Checked to n = 300000, Gary Barnes
• 2007-03-18: Sieved n<2000000, James P. Burt