Q: Is 721,725 a Prime Number?

 A: No, 721,725 is not a prime number.

Why is 721,725 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 721725 can be evenly divided by 1 3 5 15 25 75 9,623 28,869 48,115 144,345 240,575 and 721,725, with no remainder.

Since 721,725 cannot be divided by just 1 and 721,725, it is not a prime number.


More Examples

Number 721,723721,724721,726721,727
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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