Q: Is 428,163 a Prime Number?
A: No, 428,163 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 428163 can be evenly divided by 1 3 41 59 123 177 2,419 3,481 7,257 10,443 142,721 and 428,163, with no remainder.
Since 428,163 cannot be divided by just 1 and 428,163, it is not a prime number.