Q: Is 645,125 a Composite Number?

 A: Yes, 645,125 is a composite number.

Why is 645,125 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 645,125 can be evenly divided by 1 5 13 25 65 125 325 397 1,625 1,985 5,161 9,925 25,805 49,625 129,025 and 645,125, with no remainder.

Since 645,125 cannot be divided by just 1 and 645,125, it is a composite number.


More Examples

Number 645,123645,124645,126645,127
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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