Q: Is 129,557 a Prime Number?
A: No, 129,557 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 129557 can be evenly divided by 1 17 7,621 and 129,557, with no remainder.
Since 129,557 cannot be divided by just 1 and 129,557, it is not a prime number.