Q: Is 646,729 a Prime Number?
A: No, 646,729 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 646729 can be evenly divided by 1 29 769 841 22,301 and 646,729, with no remainder.
Since 646,729 cannot be divided by just 1 and 646,729, it is not a prime number.