Q: Is 721,064 a Prime Number?
A: No, 721,064 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 721064 can be evenly divided by 1 2 4 8 173 346 521 692 1,042 1,384 2,084 4,168 90,133 180,266 360,532 and 721,064, with no remainder.
Since 721,064 cannot be divided by just 1 and 721,064, it is not a prime number.