Q: Is 21,513,121 a Composite Number?

 A: Yes, 21,513,121 is a composite number.

Why is 21,513,121 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 21,513,121 can be evenly divided by 1 7 151 1,057 20,353 142,471 3,073,303 and 21,513,121, with no remainder.

Since 21,513,121 cannot be divided by just 1 and 21,513,121, it is a composite number.


More Examples

Number 21,513,11921,513,12021,513,12221,513,123
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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