| 2. | The Cunningham project endeavours to document the integer factorizations of (among other numbers) the repunits to base 2, 3, 5, 6, 7, 10, 11, and 12. Le projet Cunningham a documenté entre autres les factorisations des répunits de base 2, 3, 5, 6, 7, 10, 11, et 12. |