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

Generalized Woodall primes of the form `n`•72ⁿ-1

From Prime-Wiki

Revision as of 22:56, 5 November 2024 by Gd barnes (talk | contribs) (add twin)

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

Jump to: navigation, search

Current data

ASCII format :	n*72^n-1
Base :	72
Count :	18
Max `n` :	200,000
Date :	?

1^[1], 12, 17, 20, 49, 102, 222, 295, 778, 1449, 2721, 2985, 6492, 9144^[2], 23560, 48820, 83660, 193558

Notes

↑ Twin n=1
↑ Riesel 127•72⁹¹⁴⁵-1

History

2014-03-13: Checked to n = 25000, Steven Harvey
2013-10-08: Found n = 193558, Maik Gruenewald
2010-11-01: Checked to n = 4000, Steven Harvey
2003-09-30: Found n = 83660, Thomas Wolter
2003-07-11: Found n = 48820, Thomas Wolter
2003-06-03: Found n = 23560, Thomas Wolter
2000-04-12: Found n = 6492, Joe DeMaio
2000-02-04: Found n = 2985, Joe DeMaio
2000-02-04: Found n = 2721, Joe DeMaio
2000-01-30: Found n = 1449, Joe DeMaio

Retrieved from "https://www.rieselprime.de/z/index.php?title=Woodall_prime_72&oldid=36311"

Woodall prime