Q: Is 321,555,042 a Composite Number?

Why is 321,555,042 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 321,555,042 can be evenly divided by 1 2 3 6 9 18 23 27 46 54 69 89 138 178 207 267 414 534 621 801 1,242 1,602 2,047 2,403 2,909 4,094 4,806 5,818 6,141 8,727 12,282 17,454 18,423 26,181 36,846 52,362 55,269 66,907 78,543 110,538 133,814 157,086 200,721 258,901 401,442 517,802 602,163 776,703 1,204,326 1,553,406 1,806,489 2,330,109 3,612,978 4,660,218 5,954,723 6,990,327 11,909,446 13,980,654 17,864,169 35,728,338 53,592,507 107,185,014 160,777,521 and 321,555,042, with no remainder.

Since 321,555,042 cannot be divided by just 1 and 321,555,042, 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).