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 249•2ⁿ-1

From Prime-Wiki

Revision as of 09:03, 19 July 2021 by Karbon (talk | contribs) (base)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to: navigation, search

Current data

`k` , `b` :	249 , 2
Type :	3
Count :	24
Nash :	1592
Max `n` :	2,000,000
Date :	2020-03-13

8^[1], 9, 12, 41, 57, 156, 201, 249^[2], 612, 956, 1617, 2064, 2091, 2547, 4512, 5696, 9608, 11444, 20556, 33896, 77079, 89004, 251036, 2001627

Notes

↑ Sophie Germain n=8
↑ Woodall 249•2²⁴⁹-1

History

2020-03-13: Checked to n = 2000000, Michael Curtis, released
2015-02-19: Found n = 2001627, Michael Curtis
2015-02-18: Reserved by Michael Curtis from n=2000000
2013-03-30: Checked to n = 2000000, David Metcalfe, released
2013-02-02: Reserved by David Metcalfe from n=1300000
2012-05-14: Checked to n = 1300000, James P. Burt, released
2011-12-31: Checked to n = 1100000, James P. Burt
2011-12-10: Reserved by James P. Burt from n=1000000
2009-07-30: Reserved by Borys Jaworski from n=1000000
2005-11-26: Found n = 251036, Jun Tajima

Retrieved from "https://www.rieselprime.de/z/index.php?title=Riesel_prime_2_249&oldid=16445"