Q: Is 321,123 a Prime Number?
A: No, 321,123 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 321123 can be evenly divided by 1 3 11 33 37 111 263 407 789 1,221 2,893 8,679 9,731 29,193 107,041 and 321,123, with no remainder.
Since 321,123 cannot be divided by just 1 and 321,123, it is not a prime number.