Q: Is 12,167,505 a Composite Number?

Why is 12,167,505 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 12,167,505 can be evenly divided by 1 3 5 7 9 15 19 21 35 45 57 63 95 105 107 133 171 285 315 321 361 399 535 665 749 855 963 1,083 1,197 1,605 1,805 1,995 2,033 2,247 2,527 3,249 3,745 4,815 5,415 5,985 6,099 6,741 7,581 10,165 11,235 12,635 14,231 16,245 18,297 22,743 30,495 33,705 37,905 38,627 42,693 71,155 91,485 113,715 115,881 128,079 193,135 213,465 270,389 347,643 579,405 640,395 811,167 1,351,945 1,738,215 2,433,501 4,055,835 and 12,167,505, with no remainder.

Since 12,167,505 cannot be divided by just 1 and 12,167,505, 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).