Q: Is 1,546,545 a Composite Number?

Why is 1,546,545 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 1,546,545 can be evenly divided by 1 3 5 7 11 13 15 21 33 35 39 55 65 77 91 103 105 143 165 195 231 273 309 385 429 455 515 715 721 1,001 1,133 1,155 1,339 1,365 1,545 2,145 2,163 3,003 3,399 3,605 4,017 5,005 5,665 6,695 7,931 9,373 10,815 14,729 15,015 16,995 20,085 23,793 28,119 39,655 44,187 46,865 73,645 103,103 118,965 140,595 220,935 309,309 515,515 and 1,546,545, with no remainder.

Since 1,546,545 cannot be divided by just 1 and 1,546,545, 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).