Q: Is 128,739 a Prime Number?
A: No, 128,739 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 128739 can be evenly divided by 1 3 13 39 3,301 9,903 42,913 and 128,739, with no remainder.
Since 128,739 cannot be divided by just 1 and 128,739, it is not a prime number.