Q: Is 21,231,873 a Composite Number?

 A: Yes, 21,231,873 is a composite number.

Why is 21,231,873 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 21,231,873 can be evenly divided by 1 3 9 13 19 39 57 117 171 247 741 2,223 9,551 28,653 85,959 124,163 181,469 372,489 544,407 1,117,467 1,633,221 2,359,097 7,077,291 and 21,231,873, with no remainder.

Since 21,231,873 cannot be divided by just 1 and 21,231,873, it is a composite number.


More Examples

Number 21,231,87121,231,87221,231,87421,231,875
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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