A composite number is a number that can be divided evenly by other numbers besides 1 or itself, such as 9 which can be divided by 3. If a number like 7 can only be divided evenly by 1 and itself, it is considered a prime number rather than composite.

1. Composite Number<br />A Composite Number can be divided evenly by numbers other than 1 or itself. Example: 9 can be divided evenly by 1, 3 and 9, so 9 is a composite number.If it is not a Composite Number it is called a Prime NumberExample: 7 can only be divided evenly by 1 and 7, so it is not composite. It must be a prime number.<br />