Q: Is 18,909 a Prime Number?
A: No, 18,909 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 18909 can be evenly divided by 1 3 9 11 33 99 191 573 1,719 2,101 6,303 and 18,909, with no remainder.
Since 18,909 cannot be divided by just 1 and 18,909, it is not a prime number.