Q: Is 21,319,080 a Composite Number?

Why is 21,319,080 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 21,319,080 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 101 120 202 303 404 505 606 808 1,010 1,212 1,515 1,759 2,020 2,424 3,030 3,518 4,040 5,277 6,060 7,036 8,795 10,554 12,120 14,072 17,590 21,108 26,385 35,180 42,216 52,770 70,360 105,540 177,659 211,080 355,318 532,977 710,636 888,295 1,065,954 1,421,272 1,776,590 2,131,908 2,664,885 3,553,180 4,263,816 5,329,770 7,106,360 10,659,540 and 21,319,080, with no remainder.

Since 21,319,080 cannot be divided by just 1 and 21,319,080, 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).