Q: Is 13,403,775 a Composite Number?

Why is 13,403,775 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 13,403,775 can be evenly divided by 1 3 5 7 11 15 21 25 33 35 55 75 77 105 121 165 175 211 231 275 363 385 525 605 633 825 847 1,055 1,155 1,477 1,815 1,925 2,321 2,541 3,025 3,165 4,235 4,431 5,275 5,775 6,963 7,385 9,075 11,605 12,705 15,825 16,247 21,175 22,155 25,531 34,815 36,925 48,741 58,025 63,525 76,593 81,235 110,775 127,655 174,075 178,717 243,705 382,965 406,175 536,151 638,275 893,585 1,218,525 1,914,825 2,680,755 4,467,925 and 13,403,775, with no remainder.

Since 13,403,775 cannot be divided by just 1 and 13,403,775, 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).