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 Cullen primes of the form `n`•7ⁿ+1

From Prime-Wiki

Revision as of 17:30, 31 August 2021 by Karbon (talk | contribs) (Karbon moved page Gen Cullen prime 7 to Cullen prime 7 without leaving a redirect: renamed)

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

Jump to: navigation, search

Current data

ASCII format :	n*7^n+1
Base :	7
Count :	3
Max `n` :	255,681
Date :	2018-08-14

34, 1980, 9898^[1]

Remarks :

The sequence A242177 in OEIS

Notes

↑ Proth 202•7⁹⁹⁰⁰+1

History

1998-11-13: Found n = 9898, Wilfrid Keller
1989: Found n = 1980, Harvey Dubner

Retrieved from "https://www.rieselprime.de/z/index.php?title=Cullen_prime_7&oldid=23365"

Cullen prime