Q: Is 138,331 a Prime Number?
A: No, 138,331 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 138331 can be evenly divided by 1 43 3,217 and 138,331, with no remainder.
Since 138,331 cannot be divided by just 1 and 138,331, it is not a prime number.