Q: Is 720,520 a Prime Number?
A: No, 720,520 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 720520 can be evenly divided by 1 2 4 5 8 10 20 40 18,013 36,026 72,052 90,065 144,104 180,130 360,260 and 720,520, with no remainder.
Since 720,520 cannot be divided by just 1 and 720,520, it is not a prime number.