Q: Is 18,558 a Prime Number?
A: No, 18,558 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 18558 can be evenly divided by 1 2 3 6 9 18 1,031 2,062 3,093 6,186 9,279 and 18,558, with no remainder.
Since 18,558 cannot be divided by just 1 and 18,558, it is not a prime number.