Q: Is 428,791 a Prime Number?
A: No, 428,791 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 428791 can be evenly divided by 1 11 17 187 2,293 25,223 38,981 and 428,791, with no remainder.
Since 428,791 cannot be divided by just 1 and 428,791, it is not a prime number.