Q: Is 378,123 a Prime Number?
A: No, 378,123 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 378123 can be evenly divided by 1 3 126,041 and 378,123, with no remainder.
Since 378,123 cannot be divided by just 1 and 378,123, it is not a prime number.