Q: Is 212,331,105 a Composite Number?

Why is 212,331,105 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 212,331,105 can be evenly divided by 1 3 5 7 9 15 17 21 27 35 45 51 63 85 105 119 135 153 189 255 315 357 459 595 765 945 1,071 1,785 2,295 3,213 5,355 13,217 16,065 39,651 66,085 92,519 118,953 198,255 224,689 277,557 356,859 462,595 594,765 674,067 832,671 1,123,445 1,387,785 1,572,823 1,784,295 2,022,201 2,498,013 3,370,335 4,163,355 4,718,469 6,066,603 7,864,115 10,111,005 12,490,065 14,155,407 23,592,345 30,333,015 42,466,221 70,777,035 and 212,331,105, with no remainder.

Since 212,331,105 cannot be divided by just 1 and 212,331,105, 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).