Q: Is 428,873 a Prime Number?
A: Yes, 428,873 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 428873 can be evenly divided by 1 and 428,873, with no remainder.
Since 428,873 can be divided by just 1 and 428,873, it is a prime number.