Q: Is 1,431,045 a Composite Number?

Why is 1,431,045 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 1,431,045 can be evenly divided by 1 3 5 7 9 11 15 21 33 35 45 49 55 59 63 77 99 105 147 165 177 231 245 295 315 385 413 441 495 531 539 649 693 735 885 1,155 1,239 1,617 1,947 2,065 2,205 2,655 2,695 2,891 3,245 3,465 3,717 4,543 4,851 5,841 6,195 8,085 8,673 9,735 13,629 14,455 18,585 22,715 24,255 26,019 29,205 31,801 40,887 43,365 68,145 95,403 130,095 159,005 204,435 286,209 477,015 and 1,431,045, with no remainder.

Since 1,431,045 cannot be divided by just 1 and 1,431,045, 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).