Q: Is 1,428,440 a Composite Number?

Why is 1,428,440 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 1,428,440 can be evenly divided by 1 2 4 5 8 10 13 20 26 40 41 52 65 67 82 104 130 134 164 205 260 268 328 335 410 520 533 536 670 820 871 1,066 1,340 1,640 1,742 2,132 2,665 2,680 2,747 3,484 4,264 4,355 5,330 5,494 6,968 8,710 10,660 10,988 13,735 17,420 21,320 21,976 27,470 34,840 35,711 54,940 71,422 109,880 142,844 178,555 285,688 357,110 714,220 and 1,428,440, with no remainder.

Since 1,428,440 cannot be divided by just 1 and 1,428,440, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).