Q: Is 518,139 a Prime Number?
A: No, 518,139 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 518139 can be evenly divided by 1 3 9 57,571 172,713 and 518,139, with no remainder.
Since 518,139 cannot be divided by just 1 and 518,139, it is not a prime number.