Q: Is 138,508 a Prime Number?
A: No, 138,508 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 138508 can be evenly divided by 1 2 4 31 62 124 1,117 2,234 4,468 34,627 69,254 and 138,508, with no remainder.
Since 138,508 cannot be divided by just 1 and 138,508, it is not a prime number.