Q: Is 19,421,080 a Composite Number?

Why is 19,421,080 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 19,421,080 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 139 140 278 280 499 556 695 973 998 1,112 1,390 1,946 1,996 2,495 2,780 3,493 3,892 3,992 4,865 4,990 5,560 6,986 7,784 9,730 9,980 13,972 17,465 19,460 19,960 27,944 34,930 38,920 69,361 69,860 138,722 139,720 277,444 346,805 485,527 554,888 693,610 971,054 1,387,220 1,942,108 2,427,635 2,774,440 3,884,216 4,855,270 9,710,540 and 19,421,080, with no remainder.

Since 19,421,080 cannot be divided by just 1 and 19,421,080, 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).