Q: Is 2,163,618 a Composite Number?

Why is 2,163,618 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 2,163,618 can be evenly divided by 1 2 3 6 9 18 27 54 103 206 309 389 618 778 927 1,167 1,854 2,334 2,781 3,501 5,562 7,002 10,503 21,006 40,067 80,134 120,201 240,402 360,603 721,206 1,081,809 and 2,163,618, with no remainder.

Since 2,163,618 cannot be divided by just 1 and 2,163,618, 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).