411 REFERENCE · Wiktionary
Cullen number
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
First studied by James Cullen in 1905.
Noun
en math A natural number of the form .
Hypernyms
en Proth number
Hyponyms
en Cullen prime
en eponyms
en Number theory