Q: Is 40,221 a Prime Number?
A: No, 40,221 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 40221 can be evenly divided by 1 3 9 41 109 123 327 369 981 4,469 13,407 and 40,221, with no remainder.
Since 40,221 cannot be divided by just 1 and 40,221, it is not a prime number.