Definition:Fermat Pseudoprime/Also known as

Fermat Pseudoprime: Also known as
It is common practice to refer to such a number just as a pseudoprime.

However, there is a concept in order theory also called a pseudoprime.

Hence the full name Fermat pseudoprime is preferred on.

Some sources hyphenate the word pseudo-prime.

A Fermat pseudoprime is also known as a Fermat liar.