Q: Is 3,889,215 a Composite Number?

Why is 3,889,215 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 3,889,215 can be evenly divided by 1 3 5 9 11 15 27 33 45 55 81 97 99 135 165 243 291 297 405 485 495 729 873 891 1,067 1,215 1,455 1,485 2,619 2,673 3,201 3,645 4,365 4,455 5,335 7,857 8,019 9,603 13,095 13,365 16,005 23,571 28,809 39,285 40,095 48,015 70,713 86,427 117,855 144,045 259,281 353,565 432,135 777,843 1,296,405 and 3,889,215, with no remainder.

Since 3,889,215 cannot be divided by just 1 and 3,889,215, 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).