Q: Is 428,055 a Prime Number?
A: No, 428,055 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 428055 can be evenly divided by 1 3 5 15 28,537 85,611 142,685 and 428,055, with no remainder.
Since 428,055 cannot be divided by just 1 and 428,055, it is not a prime number.