Q: Is 720,539 a Prime Number?
A: No, 720,539 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 720539 can be evenly divided by 1 733 983 and 720,539, with no remainder.
Since 720,539 cannot be divided by just 1 and 720,539, it is not a prime number.