Q: Is 428,087 a Prime Number?
A: No, 428,087 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 428087 can be evenly divided by 1 11 38,917 and 428,087, with no remainder.
Since 428,087 cannot be divided by just 1 and 428,087, it is not a prime number.