Composite numbers are basically the opposite of prime numbers. Prime numbers are integers that can only be multiplied by 1 and itself, such as 2 and 3. Composite numbers are the numbers that aren't prime. It is formed by 2 smaller integers multiplying together that is more than 1 and itself. An example of a composite number would be 6. Not only can it be formed by 1 multiplied by itself, 6, is can also be formed by multiplying 2 and 3.
14. 33, 39, 51, 57
15. 53, 59, 67
16. 51, 63, 77, 81, 87
All the composite numbers have many factors that multiply together to get them. The prime numbers above are numbers that can only be formed by multiplying 1 by itself.
