Page "Composite number" Paragraph 1

So, if n > 0 is an integer and there are integers 1 < a, b < n such that n = a × b, then n is composite.

By definition, every integer greater than one is either a prime number or a composite number.

The number one is a unit – it is neither prime nor composite.

For example, the integer 14 is a composite number because it can be factored as 2 × 7.

Likewise, the integers 2 and 3 are not composite numbers because each of them can only be divided by one and itself.