Q: Is 2,130,678 a Composite Number?

Why is 2,130,678 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 2,130,678 can be evenly divided by 1 2 3 6 9 11 17 18 22 27 33 34 51 54 66 99 102 153 187 198 211 297 306 374 422 459 561 594 633 918 1,122 1,266 1,683 1,899 2,321 3,366 3,587 3,798 4,642 5,049 5,697 6,963 7,174 10,098 10,761 11,394 13,926 20,889 21,522 32,283 39,457 41,778 62,667 64,566 78,914 96,849 118,371 125,334 193,698 236,742 355,113 710,226 1,065,339 and 2,130,678, with no remainder.

Since 2,130,678 cannot be divided by just 1 and 2,130,678, 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).