Q: Is 2,165,970 a Composite Number?

Why is 2,165,970 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 2,165,970 can be evenly divided by 1 2 3 5 6 10 15 17 30 31 34 51 62 85 93 102 137 155 170 186 255 274 310 411 465 510 527 685 822 930 1,054 1,370 1,581 2,055 2,329 2,635 3,162 4,110 4,247 4,658 5,270 6,987 7,905 8,494 11,645 12,741 13,974 15,810 21,235 23,290 25,482 34,935 42,470 63,705 69,870 72,199 127,410 144,398 216,597 360,995 433,194 721,990 1,082,985 and 2,165,970, with no remainder.

Since 2,165,970 cannot be divided by just 1 and 2,165,970, 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).