Q: Is 5,121,870 a Composite Number?

Why is 5,121,870 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 5,121,870 can be evenly divided by 1 2 3 5 6 10 13 15 23 26 30 39 46 65 69 78 115 130 138 195 230 299 345 390 571 598 690 897 1,142 1,495 1,713 1,794 2,855 2,990 3,426 4,485 5,710 7,423 8,565 8,970 13,133 14,846 17,130 22,269 26,266 37,115 39,399 44,538 65,665 74,230 78,798 111,345 131,330 170,729 196,995 222,690 341,458 393,990 512,187 853,645 1,024,374 1,707,290 2,560,935 and 5,121,870, with no remainder.

Since 5,121,870 cannot be divided by just 1 and 5,121,870, 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).