Q: Is 721,825 a Prime Number?

 A: No, 721,825 is not a prime number.

Why is 721,825 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 721825 can be evenly divided by 1 5 13 25 65 325 2,221 11,105 28,873 55,525 144,365 and 721,825, with no remainder.

Since 721,825 cannot be divided by just 1 and 721,825, it is not a prime number.


More Examples

Number 721,823721,824721,826721,827
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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