Q: Is 20,418 a Prime Number?
A: No, 20,418 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 20418 can be evenly divided by 1 2 3 6 41 82 83 123 166 246 249 498 3,403 6,806 10,209 and 20,418, with no remainder.
Since 20,418 cannot be divided by just 1 and 20,418, it is not a prime number.