Q: Is 428,458 a Prime Number?
A: No, 428,458 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 428458 can be evenly divided by 1 2 59 118 3,631 7,262 214,229 and 428,458, with no remainder.
Since 428,458 cannot be divided by just 1 and 428,458, it is not a prime number.