Q: Is 378,438 a Prime Number?
A: No, 378,438 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 378438 can be evenly divided by 1 2 3 6 63,073 126,146 189,219 and 378,438, with no remainder.
Since 378,438 cannot be divided by just 1 and 378,438, it is not a prime number.