Q: Is 138 a Prime Number?
A: No, 138 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 138 can be evenly divided by 1 2 3 6 23 46 69 and 138, with no remainder.
Since 138 cannot be divided by just 1 and 138, it is not a prime number.