Q: Is 21,987 a Composite Number?

 A: Yes, 21,987 is a composite number.

Why is 21,987 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 21,987 can be evenly divided by 1 3 7 9 21 63 349 1,047 2,443 3,141 7,329 and 21,987, with no remainder.

Since 21,987 cannot be divided by just 1 and 21,987, it is a composite number.


More Examples

Number 21,98521,98621,98821,989
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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