FLINT3.7.0-dev

n_is_probabprime_fermat

Synopsis#include <flint/ulong_extras.h>
int n_is_probabprime_fermat(ulong n, ulong i)source

Returns whether i^{n-1} \equiv 1 \pmod n. Requires 1 < i < n and i \nmid n.

Cite this page

The FLINT team, “n_is_probabprime_fermat (ulong_extras.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/ulong_extras/n_is_probabprime_fermat.html (generated 2026-10-20).