Q: Is 138,931 a Prime Number?
A: No, 138,931 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 138931 can be evenly divided by 1 13 10,687 and 138,931, with no remainder.
Since 138,931 cannot be divided by just 1 and 138,931, it is not a prime number.