Q: Is 722,628 a Prime Number?
A: No, 722,628 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 722628 can be evenly divided by 1 2 3 4 6 9 12 18 27 36 54 108 6,691 13,382 20,073 26,764 40,146 60,219 80,292 120,438 180,657 240,876 361,314 and 722,628, with no remainder.
Since 722,628 cannot be divided by just 1 and 722,628, it is not a prime number.