Q: Is 428,456 a Prime Number?
A: No, 428,456 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 428456 can be evenly divided by 1 2 4 7 8 14 28 49 56 98 196 392 1,093 2,186 4,372 7,651 8,744 15,302 30,604 53,557 61,208 107,114 214,228 and 428,456, with no remainder.
Since 428,456 cannot be divided by just 1 and 428,456, it is not a prime number.