Q: Is 721,936 a Prime Number?
A: No, 721,936 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 721936 can be evenly divided by 1 2 4 8 16 45,121 90,242 180,484 360,968 and 721,936, with no remainder.
Since 721,936 cannot be divided by just 1 and 721,936, it is not a prime number.