Q: Is 398,429 a Prime Number?
A: No, 398,429 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 398429 can be evenly divided by 1 17 23 391 1,019 17,323 23,437 and 398,429, with no remainder.
Since 398,429 cannot be divided by just 1 and 398,429, it is not a prime number.