Q: Is 128,889 a Prime Number?
A: No, 128,889 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 128889 can be evenly divided by 1 3 9 14,321 42,963 and 128,889, with no remainder.
Since 128,889 cannot be divided by just 1 and 128,889, it is not a prime number.