Q: Is 378,387 a Prime Number?
A: No, 378,387 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 378387 can be evenly divided by 1 3 9 42,043 126,129 and 378,387, with no remainder.
Since 378,387 cannot be divided by just 1 and 378,387, it is not a prime number.