Q: Is 18 a Composite Number?

 A: Yes, 18 is a composite number.

Why is 18 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 18 can be evenly divided by 1 2 3 6 9 and 18, with no remainder.

Since 18 cannot be divided by just 1 and 18, it is a composite number.

More Examples

Number 16171920
Composite? yesnonoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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