Q: Is 720,315 a Prime Number?
A: No, 720,315 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 720315 can be evenly divided by 1 3 5 9 15 45 16,007 48,021 80,035 144,063 240,105 and 720,315, with no remainder.
Since 720,315 cannot be divided by just 1 and 720,315, it is not a prime number.