Q: Is 406,721 a Prime Number?
A: No, 406,721 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 406721 can be evenly divided by 1 7 97 599 679 4,193 58,103 and 406,721, with no remainder.
Since 406,721 cannot be divided by just 1 and 406,721, it is not a prime number.