Q: Is 402,409 a Prime Number?

 A: No, 402,409 is not a prime number.

Why is 402,409 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 402409 can be evenly divided by 1 7 57,487 and 402,409, with no remainder.

Since 402,409 cannot be divided by just 1 and 402,409, it is not a prime number.


More Examples

Number 402,407402,408402,410402,411
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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