Q: Is 72,305,919 a Composite Number?

Why is 72,305,919 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 72,305,919 can be evenly divided by 1 3 7 9 21 27 31 41 43 49 63 93 123 129 147 189 217 279 287 301 369 387 441 651 837 861 903 1,107 1,161 1,271 1,323 1,333 1,519 1,763 1,953 2,009 2,107 2,583 2,709 3,813 3,999 4,557 5,289 5,859 6,027 6,321 7,749 8,127 8,897 9,331 11,439 11,997 12,341 13,671 15,867 18,081 18,963 26,691 27,993 34,317 35,991 37,023 41,013 47,601 54,243 54,653 56,889 62,279 65,317 80,073 83,979 86,387 111,069 163,959 186,837 195,951 240,219 251,937 259,161 333,207 382,571 491,877 560,511 587,853 777,483 1,147,713 1,475,631 1,681,533 1,763,559 2,332,449 2,677,997 3,443,139 8,033,991 10,329,417 24,101,973 and 72,305,919, with no remainder.

Since 72,305,919 cannot be divided by just 1 and 72,305,919, 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).