Q: Is 655,123 a Prime Number?
A: No, 655,123 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 655123 can be evenly divided by 1 7 31 217 3,019 21,133 93,589 and 655,123, with no remainder.
Since 655,123 cannot be divided by just 1 and 655,123, it is not a prime number.