Q: Is 1,349,205 a Composite Number?

Why is 1,349,205 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 1,349,205 can be evenly divided by 1 3 5 11 13 15 17 33 37 39 51 55 65 85 111 143 165 185 187 195 221 255 407 429 481 555 561 629 663 715 935 1,105 1,221 1,443 1,887 2,035 2,145 2,405 2,431 2,805 3,145 3,315 5,291 6,105 6,919 7,215 7,293 8,177 9,435 12,155 15,873 20,757 24,531 26,455 34,595 36,465 40,885 79,365 89,947 103,785 122,655 269,841 449,735 and 1,349,205, with no remainder.

Since 1,349,205 cannot be divided by just 1 and 1,349,205, 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).