Q: Is 18,378 a Prime Number?
A: No, 18,378 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 18378 can be evenly divided by 1 2 3 6 9 18 1,021 2,042 3,063 6,126 9,189 and 18,378, with no remainder.
Since 18,378 cannot be divided by just 1 and 18,378, it is not a prime number.