Q: Is 2,163,315 a Composite Number?

Why is 2,163,315 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 2,163,315 can be evenly divided by 1 3 5 7 11 15 21 33 35 55 77 105 165 231 385 1,155 1,873 5,619 9,365 13,111 20,603 28,095 39,333 61,809 65,555 103,015 144,221 196,665 309,045 432,663 721,105 and 2,163,315, with no remainder.

Since 2,163,315 cannot be divided by just 1 and 2,163,315, 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).