Q: Is 15,123 a Prime Number?
A: No, 15,123 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 15123 can be evenly divided by 1 3 71 213 5,041 and 15,123, with no remainder.
Since 15,123 cannot be divided by just 1 and 15,123, it is not a prime number.