Q: Is 21,110,100 a Composite Number?

Why is 21,110,100 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 21,110,100 can be evenly divided by 1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 150 165 220 275 300 330 550 660 825 1,100 1,650 3,300 6,397 12,794 19,191 25,588 31,985 38,382 63,970 70,367 76,764 95,955 127,940 140,734 159,925 191,910 211,101 281,468 319,850 351,835 383,820 422,202 479,775 639,700 703,670 844,404 959,550 1,055,505 1,407,340 1,759,175 1,919,100 2,111,010 3,518,350 4,222,020 5,277,525 7,036,700 10,555,050 and 21,110,100, with no remainder.

Since 21,110,100 cannot be divided by just 1 and 21,110,100, 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).