Q: Is 43,209,705 a Composite Number?

Why is 43,209,705 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 43,209,705 can be evenly divided by 1 3 5 7 11 15 19 21 33 35 55 57 77 95 105 121 133 165 179 209 231 285 363 385 399 537 605 627 665 847 895 1,045 1,155 1,253 1,463 1,815 1,969 1,995 2,299 2,541 2,685 3,135 3,401 3,759 4,235 4,389 5,907 6,265 6,897 7,315 9,845 10,203 11,495 12,705 13,783 16,093 17,005 18,795 21,659 21,945 23,807 29,535 34,485 37,411 41,349 48,279 51,015 64,977 68,915 71,421 80,465 108,295 112,233 119,035 151,613 187,055 206,745 241,395 261,877 324,885 357,105 411,521 454,839 561,165 758,065 785,631 1,234,563 1,309,385 2,057,605 2,274,195 2,880,647 3,928,155 6,172,815 8,641,941 14,403,235 and 43,209,705, with no remainder.

Since 43,209,705 cannot be divided by just 1 and 43,209,705, 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).