Q: Is 398,738 a Prime Number?
A: No, 398,738 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 398738 can be evenly divided by 1 2 193 386 1,033 2,066 199,369 and 398,738, with no remainder.
Since 398,738 cannot be divided by just 1 and 398,738, it is not a prime number.