Q: Is 138,583 a Prime Number?
A: No, 138,583 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 138583 can be evenly divided by 1 139 997 and 138,583, with no remainder.
Since 138,583 cannot be divided by just 1 and 138,583, it is not a prime number.