Question #e828d

1 Answer
Sep 21, 2017

Positive whole numbers which aren't prime.

Explanation:

A number which can be divided by numbers other than itself and one - if it has multiple factors.

Eg: 4 - is divisible by 1, 2, and 4. #:.# is composite.

The composite numbers under twenty are 4, 6, 8, 10, 12, 14, 15, 16, 18,and 20.