Q: Is 23,021,505 a Composite Number?

Why is 23,021,505 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 23,021,505 can be evenly divided by 1 3 5 9 13 15 23 29 39 45 59 65 69 87 115 117 145 177 195 207 261 295 299 345 377 435 531 585 667 767 885 897 1,035 1,131 1,305 1,357 1,495 1,711 1,885 2,001 2,301 2,655 2,691 3,335 3,393 3,835 4,071 4,485 5,133 5,655 6,003 6,785 6,903 8,555 8,671 10,005 11,505 12,213 13,455 15,399 16,965 17,641 20,355 22,243 25,665 26,013 30,015 34,515 39,353 43,355 52,923 61,065 66,729 76,995 78,039 88,205 111,215 118,059 130,065 158,769 196,765 200,187 264,615 333,645 354,177 390,195 511,589 590,295 793,845 1,000,935 1,534,767 1,770,885 2,557,945 4,604,301 7,673,835 and 23,021,505, with no remainder.

Since 23,021,505 cannot be divided by just 1 and 23,021,505, 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).