Q: Is 891,990 a Composite Number?

Why is 891,990 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 891,990 can be evenly divided by 1 2 3 5 6 9 10 11 15 17 18 22 30 33 34 45 51 53 55 66 85 90 99 102 106 110 153 159 165 170 187 198 255 265 306 318 330 374 477 495 510 530 561 583 765 795 901 935 954 990 1,122 1,166 1,530 1,590 1,683 1,749 1,802 1,870 2,385 2,703 2,805 2,915 3,366 3,498 4,505 4,770 5,247 5,406 5,610 5,830 8,109 8,415 8,745 9,010 9,911 10,494 13,515 16,218 16,830 17,490 19,822 26,235 27,030 29,733 40,545 49,555 52,470 59,466 81,090 89,199 99,110 148,665 178,398 297,330 445,995 and 891,990, with no remainder.

Since 891,990 cannot be divided by just 1 and 891,990, 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).