Q: Is 221,355,108 a Composite Number?

Why is 221,355,108 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 221,355,108 can be evenly divided by 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 239 468 478 717 956 1,434 1,979 2,151 2,868 3,107 3,958 4,302 5,937 6,214 7,916 8,604 9,321 11,874 12,428 17,811 18,642 23,748 25,727 27,963 35,622 37,284 51,454 55,926 71,244 77,181 102,908 111,852 154,362 231,543 308,724 463,086 472,981 926,172 945,962 1,418,943 1,891,924 2,837,886 4,256,829 5,675,772 6,148,753 8,513,658 12,297,506 17,027,316 18,446,259 24,595,012 36,892,518 55,338,777 73,785,036 110,677,554 and 221,355,108, with no remainder.

Since 221,355,108 cannot be divided by just 1 and 221,355,108, 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).