Q: Is 18,645 a Prime Number?
A: No, 18,645 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 18645 can be evenly divided by 1 3 5 11 15 33 55 113 165 339 565 1,243 1,695 3,729 6,215 and 18,645, with no remainder.
Since 18,645 cannot be divided by just 1 and 18,645, it is not a prime number.