Q: Is 402,407 a Prime Number?
A: No, 402,407 is 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 402407 can be evenly divided by 1 17 23,671 and 402,407, with no remainder.
Since 402,407 cannot be divided by just 1 and 402,407, it is not a prime number.