Q: Is 21,125,211 a Composite Number?

Why is 21,125,211 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 21,125,211 can be evenly divided by 1 3 1,949 3,613 5,847 10,839 7,041,737 and 21,125,211, with no remainder.

Since 21,125,211 cannot be divided by just 1 and 21,125,211, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).