Q: Is 7,778,628 a Composite Number?

Why is 7,778,628 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 7,778,628 can be evenly divided by 1 2 3 4 6 9 11 12 13 18 22 26 33 36 39 44 52 66 78 99 117 132 143 156 198 234 286 396 429 468 572 858 1,287 1,511 1,716 2,574 3,022 4,533 5,148 6,044 9,066 13,599 16,621 18,132 19,643 27,198 33,242 39,286 49,863 54,396 58,929 66,484 78,572 99,726 117,858 149,589 176,787 199,452 216,073 235,716 299,178 353,574 432,146 598,356 648,219 707,148 864,292 1,296,438 1,944,657 2,592,876 3,889,314 and 7,778,628, with no remainder.

Since 7,778,628 cannot be divided by just 1 and 7,778,628, 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).