Q: Is 720,608 a Prime Number?
A: No, 720,608 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 720608 can be evenly divided by 1 2 4 7 8 14 16 28 32 56 112 224 3,217 6,434 12,868 22,519 25,736 45,038 51,472 90,076 102,944 180,152 360,304 and 720,608, with no remainder.
Since 720,608 cannot be divided by just 1 and 720,608, it is not a prime number.