Q: Is 428,398 a Prime Number?
A: No, 428,398 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 428398 can be evenly divided by 1 2 23 46 67 134 139 278 1,541 3,082 3,197 6,394 9,313 18,626 214,199 and 428,398, with no remainder.
Since 428,398 cannot be divided by just 1 and 428,398, it is not a prime number.