Q: Is 125,209 a Prime Number?
A: No, 125,209 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 125209 can be evenly divided by 1 7 31 217 577 4,039 17,887 and 125,209, with no remainder.
Since 125,209 cannot be divided by just 1 and 125,209, it is not a prime number.