Q: Is 387,378 a Prime Number?
A: No, 387,378 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 387378 can be evenly divided by 1 2 3 6 9 18 21,521 43,042 64,563 129,126 193,689 and 387,378, with no remainder.
Since 387,378 cannot be divided by just 1 and 387,378, it is not a prime number.