Q: Is 1,428,728 a Composite Number?
A: Yes, 1,428,728 is a composite number.
The number 1,428,728 can be evenly divided by 1 2 4 7 8 14 28 31 56 62 124 217 248 434 823 868 1,646 1,736 3,292 5,761 6,584 11,522 23,044 25,513 46,088 51,026 102,052 178,591 204,104 357,182 714,364 and 1,428,728, with no remainder.
Since 1,428,728 cannot be divided by just 1 and 1,428,728, it is a composite number.