Q: Is 21,791 a Composite Number?

 A: Yes, 21,791 is a composite number.

Why is 21,791 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 21,791 can be evenly divided by 1 7 11 77 283 1,981 3,113 and 21,791, with no remainder.

Since 21,791 cannot be divided by just 1 and 21,791, it is a composite number.


More Examples

Number 21,78921,79021,79221,793
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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