Q: Is 21,684 a Composite Number?

 A: Yes, 21,684 is a composite number.

Why is 21,684 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 21,684 can be evenly divided by 1 2 3 4 6 12 13 26 39 52 78 139 156 278 417 556 834 1,668 1,807 3,614 5,421 7,228 10,842 and 21,684, with no remainder.

Since 21,684 cannot be divided by just 1 and 21,684, it is a composite number.


More Examples

Number 21,68221,68321,68521,686
Composite? yesnoyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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