Q: Is 428,689 a Prime Number?
A: No, 428,689 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 428689 can be evenly divided by 1 17 151 167 2,567 2,839 25,217 and 428,689, with no remainder.
Since 428,689 cannot be divided by just 1 and 428,689, it is not a prime number.