Q: Is 418,221 a Prime Number?
A: No, 418,221 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 418221 can be evenly divided by 1 3 9 31 93 279 1,499 4,497 13,491 46,469 139,407 and 418,221, with no remainder.
Since 418,221 cannot be divided by just 1 and 418,221, it is not a prime number.