Note: Due to changes in the Riesel prime template, most of those pages (and related) are not shown properly.This will take some time!Wanna help? Please move any Riesel prime page first, then edit/add the base parameter.
If a number can be written as the product $\displaystyle{ a * b }$ where the integers $\displaystyle{ a }$ and $\displaystyle{ b }$ are both greater than 1, the number is composite.