Q: Is 726,631 a Prime Number?
A: No, 726,631 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 726631 can be evenly divided by 1 17 42,743 and 726,631, with no remainder.
Since 726,631 cannot be divided by just 1 and 726,631, it is not a prime number.