# Glossary

## This page is an index to the main mathematical terms and phrases used throughout the wiki

**Composite Number** - An integer that is not prime

**Exponent** - In <math>3^5</math>, 5 is the exponent

**Factor** - A divisor

**Factorization** - Finding the factors of an integer

**Fast Fourier Transform** - An algorithm that permits real-time signal spectrum analysis.

**Fermat number** - Numbers of the form <math> 2^2^r + 1</math>

**Generalized Fermat Number** - There are different kinds of such numbers.

**Lucas-Lehmer Test** - A test used to prove primality of mersenne numbers.

**Mersenne prime** - Primes of the type <math>2^n -1</math> (implying n is also prime).

**Pépin Test** - A test used to prove primality of Fermat numbers.

**Perfect number** - An integer that is equal to the sum of its divisors, excluding itself.

**Prime Number** - Numbers only divisible by 1 and the number itself.