Q: Is 1,212,123 a Prime Number?
A: No, 1,212,123 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 1212123 can be evenly divided by 1 3 11 23 33 69 253 759 1,597 4,791 17,567 36,731 52,701 110,193 404,041 and 1,212,123, with no remainder.
Since 1,212,123 cannot be divided by just 1 and 1,212,123, it is not a prime number.