# Carmichael number
Last edited: 2023-11-11
Carmichael number
A $z \in \mathbb{N}$ is called a Carmichael number if it is not prime and has no non-trivial Fermat witness .
Last edited: 2023-11-11
A $z \in \mathbb{N}$ is called a Carmichael number if it is not prime and has no non-trivial Fermat witness .