Q: Is 77,790,615 a Composite Number?

Why is 77,790,615 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 77,790,615 can be evenly divided by 1 3 5 7 15 21 29 35 59 87 105 145 177 203 295 413 433 435 609 885 1,015 1,239 1,299 1,711 2,065 2,165 3,031 3,045 5,133 6,195 6,495 8,555 9,093 11,977 12,557 15,155 25,547 25,665 35,931 37,671 45,465 59,885 62,785 76,641 87,899 127,735 178,829 179,655 188,355 263,697 383,205 439,495 536,487 740,863 894,145 1,318,485 2,222,589 2,682,435 3,704,315 5,186,041 11,112,945 15,558,123 25,930,205 and 77,790,615, with no remainder.

Since 77,790,615 cannot be divided by just 1 and 77,790,615, 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).