Q: Is 720,536 a Prime Number?
A: No, 720,536 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 720536 can be evenly divided by 1 2 4 8 90,067 180,134 360,268 and 720,536, with no remainder.
Since 720,536 cannot be divided by just 1 and 720,536, it is not a prime number.