Q: Is 128,123 a Prime Number?
A: No, 128,123 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 128123 can be evenly divided by 1 31 4,133 and 128,123, with no remainder.
Since 128,123 cannot be divided by just 1 and 128,123, it is not a prime number.