Q: Is 720,637 a Prime Number?
A: No, 720,637 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 720637 can be evenly divided by 1 43 16,759 and 720,637, with no remainder.
Since 720,637 cannot be divided by just 1 and 720,637, it is not a prime number.