Q: Is 21,100,721 a Composite Number?

 A: Yes, 21,100,721 is a composite number.

Why is 21,100,721 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 21,100,721 can be evenly divided by 1 107 197,203 and 21,100,721, with no remainder.

Since 21,100,721 cannot be divided by just 1 and 21,100,721, it is a composite number.


More Examples

Number 21,100,71921,100,72021,100,72221,100,723
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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