Q: Is 721,066 a Prime Number?
A: No, 721,066 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 721066 can be evenly divided by 1 2 347 694 1,039 2,078 360,533 and 721,066, with no remainder.
Since 721,066 cannot be divided by just 1 and 721,066, it is not a prime number.