Q: Is 1,643,070 a Composite Number?

Why is 1,643,070 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 1,643,070 can be evenly divided by 1 2 3 5 6 10 11 13 15 22 26 30 33 39 55 65 66 78 110 130 143 165 195 286 330 383 390 429 715 766 858 1,149 1,430 1,915 2,145 2,298 3,830 4,213 4,290 4,979 5,745 8,426 9,958 11,490 12,639 14,937 21,065 24,895 25,278 29,874 42,130 49,790 54,769 63,195 74,685 109,538 126,390 149,370 164,307 273,845 328,614 547,690 821,535 and 1,643,070, with no remainder.

Since 1,643,070 cannot be divided by just 1 and 1,643,070, 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).