Q: Is 21,609 a Composite Number?

 A: Yes, 21,609 is a composite number.

Why is 21,609 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 21,609 can be evenly divided by 1 3 7 9 21 49 63 147 343 441 1,029 2,401 3,087 7,203 and 21,609, with no remainder.

Since 21,609 cannot be divided by just 1 and 21,609, it is a composite number.


More Examples

Number 21,60721,60821,61021,611
Composite? yesyesyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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