Q: Is 20,828,574 a Composite Number?

Why is 20,828,574 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 20,828,574 can be evenly divided by 1 2 3 6 9 13 18 26 39 41 78 82 117 123 167 169 234 246 334 338 369 501 507 533 738 1,002 1,014 1,066 1,503 1,521 1,599 2,171 3,006 3,042 3,198 4,342 4,797 6,513 6,847 6,929 9,594 13,026 13,694 13,858 19,539 20,541 20,787 28,223 39,078 41,082 41,574 56,446 61,623 62,361 84,669 89,011 123,246 124,722 169,338 178,022 254,007 267,033 508,014 534,066 801,099 1,157,143 1,602,198 2,314,286 3,471,429 6,942,858 10,414,287 and 20,828,574, with no remainder.

Since 20,828,574 cannot be divided by just 1 and 20,828,574, 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).