Q: Is 402,398 a Prime Number?
A: No, 402,398 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 402398 can be evenly divided by 1 2 173 346 1,163 2,326 201,199 and 402,398, with no remainder.
Since 402,398 cannot be divided by just 1 and 402,398, it is not a prime number.