Q: Is 129,191 a Prime Number?
A: No, 129,191 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 129191 can be evenly divided by 1 23 41 137 943 3,151 5,617 and 129,191, with no remainder.
Since 129,191 cannot be divided by just 1 and 129,191, it is not a prime number.