Q: Is 2,731,575 a Composite Number?

Why is 2,731,575 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 2,731,575 can be evenly divided by 1 3 5 7 11 15 21 25 33 35 43 55 75 77 105 121 129 165 175 215 231 275 301 363 385 473 525 605 645 825 847 903 1,075 1,155 1,419 1,505 1,815 1,925 2,365 2,541 3,025 3,225 3,311 4,235 4,515 5,203 5,775 7,095 7,525 9,075 9,933 11,825 12,705 15,609 16,555 21,175 22,575 26,015 35,475 36,421 49,665 63,525 78,045 82,775 109,263 130,075 182,105 248,325 390,225 546,315 910,525 and 2,731,575, with no remainder.

Since 2,731,575 cannot be divided by just 1 and 2,731,575, 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).