Q: Is 279,123 a Prime Number?
A: No, 279,123 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 279123 can be evenly divided by 1 3 13 17 39 51 221 421 663 1,263 5,473 7,157 16,419 21,471 93,041 and 279,123, with no remainder.
Since 279,123 cannot be divided by just 1 and 279,123, it is not a prime number.