Q: Is 21,828 a Composite Number?

 A: Yes, 21,828 is a composite number.

Why is 21,828 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 21,828 can be evenly divided by 1 2 3 4 6 12 17 34 51 68 102 107 204 214 321 428 642 1,284 1,819 3,638 5,457 7,276 10,914 and 21,828, with no remainder.

Since 21,828 cannot be divided by just 1 and 21,828, it is a composite number.


More Examples

Number 21,82621,82721,82921,830
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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