Q: Is 5,129,943 a Composite Number?

Why is 5,129,943 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 5,129,943 can be evenly divided by 1 3 7 13 19 21 23 39 43 57 69 91 129 133 161 247 273 299 301 399 437 483 559 741 817 897 903 989 1,311 1,677 1,729 2,093 2,451 2,967 3,059 3,913 5,187 5,681 5,719 6,279 6,923 9,177 10,621 11,739 12,857 17,043 17,157 18,791 20,769 31,863 38,571 39,767 56,373 74,347 89,999 119,301 131,537 223,041 244,283 269,997 394,611 732,849 1,709,981 and 5,129,943, with no remainder.

Since 5,129,943 cannot be divided by just 1 and 5,129,943, 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).