Q: Is 120,309 a Prime Number?
A: No, 120,309 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 120309 can be evenly divided by 1 3 7 17 21 51 119 337 357 1,011 2,359 5,729 7,077 17,187 40,103 and 120,309, with no remainder.
Since 120,309 cannot be divided by just 1 and 120,309, it is not a prime number.