Q: Is 428,471 a Prime Number?
A: Yes, 428,471 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 428471 can be evenly divided by 1 and 428,471, with no remainder.
Since 428,471 can be divided by just 1 and 428,471, it is a prime number.