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`•18ⁿ+1

From Prime-Wiki

Revision as of 12:22, 25 April 2023 by Rogue (talk | contribs) (Added double check details)

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

Jump to: navigation, search

Current data

ASCII format :	n*18^n+1
Base :	18
Count :	12
Max `n` :	203,597
Date :	2019-11-23

1, 3, 21, 23, 842, 1683, 3401, 16839, 49963, 60239, 150940, 155928

History

2023-14-25: Checked n = 2 - 100000, Mark Rodenkirch, double-checked
?: Checked to n = 203597, (?)
2002-05-20: Found n = 60239, Günter Löh
2000-11-02: Found n = 49963, Günter Löh
2000-05-15: Found n = 16839, Günter Löh
1990-01-01: Found n = 1683, Harvey Dubner
1990-01-01: Found n = 842, Harvey Dubner

Retrieved from "https://www.rieselprime.de/z/index.php?title=Cullen_prime_18&oldid=28319"

Cullen prime