Q: Is 721,016 a Prime Number?
A: No, 721,016 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 721016 can be evenly divided by 1 2 4 8 90,127 180,254 360,508 and 721,016, with no remainder.
Since 721,016 cannot be divided by just 1 and 721,016, it is not a prime number.