Q: Is 15,540,030 a Composite Number?

Why is 15,540,030 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 15,540,030 can be evenly divided by 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 121 165 198 242 330 363 495 605 726 990 1,089 1,210 1,427 1,815 2,178 2,854 3,630 4,281 5,445 7,135 8,562 10,890 12,843 14,270 15,697 21,405 25,686 31,394 42,810 47,091 64,215 78,485 94,182 128,430 141,273 156,970 172,667 235,455 282,546 345,334 470,910 518,001 706,365 863,335 1,036,002 1,412,730 1,554,003 1,726,670 2,590,005 3,108,006 5,180,010 7,770,015 and 15,540,030, with no remainder.

Since 15,540,030 cannot be divided by just 1 and 15,540,030, 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).