Q: Is 125,309 a Prime Number?
A: No, 125,309 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 125309 can be evenly divided by 1 29 149 841 4,321 and 125,309, with no remainder.
Since 125,309 cannot be divided by just 1 and 125,309, it is not a prime number.