Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
113: | \[{7^{113}-1\over6}\] | 227 × 230091944348186646613985311030910601771732680858725360845463092718251327185092028815673428363<93> |