Q: Is 720,691 a Prime Number?
A: No, 720,691 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 720691 can be evenly divided by 1 103 6,997 and 720,691, with no remainder.
Since 720,691 cannot be divided by just 1 and 720,691, it is not a prime number.