Q: Is 18,387 a Prime Number?
A: No, 18,387 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 18387 can be evenly divided by 1 3 9 27 81 227 681 2,043 6,129 and 18,387, with no remainder.
Since 18,387 cannot be divided by just 1 and 18,387, it is not a prime number.