Q: Is 210,123 a Prime Number?
A: No, 210,123 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 210123 can be evenly divided by 1 3 9 37 111 333 631 1,893 5,679 23,347 70,041 and 210,123, with no remainder.
Since 210,123 cannot be divided by just 1 and 210,123, it is not a prime number.