Q: Is 1,643,166 a Composite Number?

Why is 1,643,166 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 1,643,166 can be evenly divided by 1 2 3 6 7 9 14 18 21 23 27 42 46 49 54 63 69 81 98 126 138 147 161 162 189 207 243 294 322 378 414 441 483 486 567 621 729 882 966 1,127 1,134 1,242 1,323 1,449 1,458 1,701 1,863 2,254 2,646 2,898 3,381 3,402 3,726 3,969 4,347 5,103 5,589 6,762 7,938 8,694 10,143 10,206 11,178 11,907 13,041 16,767 20,286 23,814 26,082 30,429 33,534 35,721 39,123 60,858 71,442 78,246 91,287 117,369 182,574 234,738 273,861 547,722 821,583 and 1,643,166, with no remainder.

Since 1,643,166 cannot be divided by just 1 and 1,643,166, 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).