Q: Is 398,542 a Prime Number?
A: No, 398,542 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 398542 can be evenly divided by 1 2 89 178 2,239 4,478 199,271 and 398,542, with no remainder.
Since 398,542 cannot be divided by just 1 and 398,542, it is not a prime number.