Q: Is 726,605 a Prime Number?
A: No, 726,605 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 726605 can be evenly divided by 1 5 11 55 121 605 1,201 6,005 13,211 66,055 145,321 and 726,605, with no remainder.
Since 726,605 cannot be divided by just 1 and 726,605, it is not a prime number.