Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3).

Navigation

Topics

Help • Register • News • History • How to • Sequences statistics • Template prototypes

Riesel primes of the form 817•2ⁿ-1

From Prime-Wiki

Jump to: navigation, search

Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

`k` , `b` :	817 , 2
Type :	Low
Count :	17
Nash :	894
Max `n` :	2,170,000
Date :	2024-04-02
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

9, 13, 21, 33, 37, 69, 157, 345, 373, 1069, 1201, 11533, 11929, 40753, 84997, 159405, 522253

History

2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
2008-12-22: Checked to n = 600000, NPLB Drive 1, released
2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
2008-08-20: Found n = 522253, Gary Barnes
2008-03-25: Checked to n = 333200, NPLB Drive 2, released
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000

Retrieved from "https://www.rieselprime.de/z/index.php?title=Riesel_prime_2_817&oldid=27209"