Q: Is 21,115,107 a Composite Number?

 A: Yes, 21,115,107 is a composite number.

Why is 21,115,107 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 21,115,107 can be evenly divided by 1 3 9 13 27 39 43 117 129 351 387 559 1,161 1,399 1,677 4,197 5,031 12,591 15,093 18,187 37,773 54,561 60,157 163,683 180,471 491,049 541,413 782,041 1,624,239 2,346,123 7,038,369 and 21,115,107, with no remainder.

Since 21,115,107 cannot be divided by just 1 and 21,115,107, it is a composite number.


More Examples

Number 21,115,10521,115,10621,115,10821,115,109
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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