Q: Is 21,163,137 a Composite Number?

Why is 21,163,137 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 21,163,137 can be evenly divided by 1 3 1,721 4,099 5,163 12,297 7,054,379 and 21,163,137, with no remainder.

Since 21,163,137 cannot be divided by just 1 and 21,163,137, 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).