Q: Is 135,123 a Prime Number?
A: No, 135,123 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 135123 can be evenly divided by 1 3 73 219 617 1,851 45,041 and 135,123, with no remainder.
Since 135,123 cannot be divided by just 1 and 135,123, it is not a prime number.