Q: Is 16,501,815 a Composite Number?

Why is 16,501,815 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 16,501,815 can be evenly divided by 1 3 5 9 11 15 17 33 37 45 51 53 55 85 99 111 153 159 165 185 187 255 265 333 407 477 495 555 561 583 629 765 795 901 935 1,221 1,665 1,683 1,749 1,887 1,961 2,035 2,385 2,703 2,805 2,915 3,145 3,663 4,505 5,247 5,661 5,883 6,105 6,919 8,109 8,415 8,745 9,435 9,805 9,911 13,515 17,649 18,315 20,757 21,571 26,235 28,305 29,415 29,733 33,337 34,595 40,545 49,555 62,271 64,713 88,245 89,199 100,011 103,785 107,855 148,665 166,685 194,139 300,033 311,355 323,565 366,707 445,995 500,055 970,695 1,100,121 1,500,165 1,833,535 3,300,363 5,500,605 and 16,501,815, with no remainder.

Since 16,501,815 cannot be divided by just 1 and 16,501,815, 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).