Q: Is 21,346,254 a Composite Number?

Why is 21,346,254 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 21,346,254 can be evenly divided by 1 2 3 6 9 17 18 23 27 34 46 51 54 69 81 102 138 153 162 207 306 337 391 414 459 621 674 782 918 1,011 1,173 1,242 1,377 1,863 2,022 2,346 2,754 3,033 3,519 3,726 5,729 6,066 7,038 7,751 9,099 10,557 11,458 15,502 17,187 18,198 21,114 23,253 27,297 31,671 34,374 46,506 51,561 54,594 63,342 69,759 103,122 131,767 139,518 154,683 209,277 263,534 309,366 395,301 418,554 464,049 627,831 790,602 928,098 1,185,903 1,255,662 2,371,806 3,557,709 7,115,418 10,673,127 and 21,346,254, with no remainder.

Since 21,346,254 cannot be divided by just 1 and 21,346,254, 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).