Q: Is 428,658 a Prime Number?
A: No, 428,658 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 428658 can be evenly divided by 1 2 3 6 71,443 142,886 214,329 and 428,658, with no remainder.
Since 428,658 cannot be divided by just 1 and 428,658, it is not a prime number.