Q: Is 21,423,024 a Composite Number?

Why is 21,423,024 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 21,423,024 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 53 56 63 72 84 106 112 126 144 159 168 212 252 318 336 371 401 424 477 504 636 742 802 848 954 1,008 1,113 1,203 1,272 1,484 1,604 1,908 2,226 2,406 2,544 2,807 2,968 3,208 3,339 3,609 3,816 4,452 4,812 5,614 5,936 6,416 6,678 7,218 7,632 8,421 8,904 9,624 11,228 13,356 14,436 16,842 17,808 19,248 21,253 22,456 25,263 26,712 28,872 33,684 42,506 44,912 50,526 53,424 57,744 63,759 67,368 85,012 101,052 127,518 134,736 148,771 170,024 191,277 202,104 255,036 297,542 340,048 382,554 404,208 446,313 510,072 595,084 765,108 892,626 1,020,144 1,190,168 1,338,939 1,530,216 1,785,252 2,380,336 2,677,878 3,060,432 3,570,504 5,355,756 7,141,008 10,711,512 and 21,423,024, with no remainder.

Since 21,423,024 cannot be divided by just 1 and 21,423,024, 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).