Q: Is 1,727,730 a Composite Number?

Why is 1,727,730 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 1,727,730 can be evenly divided by 1 2 3 5 6 9 10 15 18 27 30 45 54 79 81 90 135 158 162 237 243 270 395 405 474 486 711 729 790 810 1,185 1,215 1,422 1,458 2,133 2,187 2,370 2,430 3,555 3,645 4,266 4,374 6,399 7,110 7,290 10,665 10,935 12,798 19,197 21,330 21,870 31,995 38,394 57,591 63,990 95,985 115,182 172,773 191,970 287,955 345,546 575,910 863,865 and 1,727,730, with no remainder.

Since 1,727,730 cannot be divided by just 1 and 1,727,730, 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).