1 is not composite (and also not prime), by definition.
2 is not composite, as it is prime.
15 is composite, since .
93555 is composite, since .
52223 is not composite, since it is prime.
More generally, we can define compositeness any time there is an ambient notion of an irreducible element. In an integral domain, for example, an element is said to be composite if it neither zero, a unit, nor irreducible.
|Date of creation||2013-03-22 12:39:37|
|Last modified on||2013-03-22 12:39:37|
|Last modified by||mathcam (2727)|