Q: Is 129,138 a Prime Number?
A: No, 129,138 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 129138 can be evenly divided by 1 2 3 6 21,523 43,046 64,569 and 129,138, with no remainder.
Since 129,138 cannot be divided by just 1 and 129,138, it is not a prime number.