Q: Is 128,939 a Prime Number?
A: Yes, 128,939 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 128939 can be evenly divided by 1 and 128,939, with no remainder.
Since 128,939 can be divided by just 1 and 128,939, it is a prime number.