Q: Is 679,720 a Prime Number?
A: No, 679,720 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 679720 can be evenly divided by 1 2 4 5 8 10 20 40 16,993 33,986 67,972 84,965 135,944 169,930 339,860 and 679,720, with no remainder.
Since 679,720 cannot be divided by just 1 and 679,720, it is not a prime number.