Q: Is 2,747,745 a Composite Number?

Why is 2,747,745 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 2,747,745 can be evenly divided by 1 3 5 7 9 11 13 15 21 33 35 39 45 55 61 63 65 77 91 99 105 117 143 165 183 195 231 273 305 315 385 427 429 455 495 549 585 671 693 715 793 819 915 1,001 1,155 1,281 1,287 1,365 2,013 2,135 2,145 2,379 2,745 3,003 3,355 3,465 3,843 3,965 4,095 4,697 5,005 5,551 6,039 6,405 6,435 7,137 8,723 9,009 10,065 11,895 14,091 15,015 16,653 19,215 23,485 26,169 27,755 30,195 35,685 42,273 43,615 45,045 49,959 61,061 70,455 78,507 83,265 130,845 183,183 211,365 249,795 305,305 392,535 549,549 915,915 and 2,747,745, with no remainder.

Since 2,747,745 cannot be divided by just 1 and 2,747,745, 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).