Q: Is 129,357 a Prime Number?
A: No, 129,357 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 129357 can be evenly divided by 1 3 9 27 81 1,597 4,791 14,373 43,119 and 129,357, with no remainder.
Since 129,357 cannot be divided by just 1 and 129,357, it is not a prime number.