Q: Is 428,725 a Prime Number?
A: No, 428,725 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 428725 can be evenly divided by 1 5 11 25 55 275 1,559 7,795 17,149 38,975 85,745 and 428,725, with no remainder.
Since 428,725 cannot be divided by just 1 and 428,725, it is not a prime number.