What is Composite number?

A whole number that can be made by multiplying other whole numbers.

Example: 6 can be made by 2 × 3 so is a composite number.

But 7 can not be made by multiplying other whole numbers (except 1×7, but we said to use other whole numbers), so is not a composite number, it is a prime number.

All whole numbers above 1 are either composite or prime.