Q: Is 428,718 a Prime Number?
A: No, 428,718 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 428718 can be evenly divided by 1 2 3 6 71,453 142,906 214,359 and 428,718, with no remainder.
Since 428,718 cannot be divided by just 1 and 428,718, it is not a prime number.