# Fermat prime

> English word · Noun

## Definitions
1. A Fermat number that is prime.

## Etymology
Named after French lawyer and amateur mathematician Pierre de Fermat (1601–1665).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fermat-prime