Q: Is 720,580 a Prime Number?
A: No, 720,580 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 720580 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 5,147 10,294 20,588 25,735 36,029 51,470 72,058 102,940 144,116 180,145 360,290 and 720,580, with no remainder.
Since 720,580 cannot be divided by just 1 and 720,580, it is not a prime number.