Q: Is 21,440,916 a Composite Number?

Why is 21,440,916 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 21,440,916 can be evenly divided by 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 79 84 108 126 158 189 237 252 316 359 378 474 553 711 718 756 948 1,077 1,106 1,422 1,436 1,659 2,133 2,154 2,212 2,513 2,844 3,231 3,318 4,266 4,308 4,977 5,026 6,462 6,636 7,539 8,532 9,693 9,954 10,052 12,924 14,931 15,078 19,386 19,908 22,617 28,361 29,862 30,156 38,772 45,234 56,722 59,724 67,851 85,083 90,468 113,444 135,702 170,166 198,527 255,249 271,404 340,332 397,054 510,498 595,581 765,747 794,108 1,020,996 1,191,162 1,531,494 1,786,743 2,382,324 3,062,988 3,573,486 5,360,229 7,146,972 10,720,458 and 21,440,916, with no remainder.

Since 21,440,916 cannot be divided by just 1 and 21,440,916, 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).