Q: Is 428,315 a Prime Number?
A: No, 428,315 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 428315 can be evenly divided by 1 5 17 85 5,039 25,195 85,663 and 428,315, with no remainder.
Since 428,315 cannot be divided by just 1 and 428,315, it is not a prime number.