Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 417: | \[{8^{417}-1\over7}\] | 73 × 2503 × 5625767248687<13> × 7606017793609<13> × 123876132205208335762278423601<30> × 4141765665149841884868090281058439<34> × 18711855488494977389826847656083384790098295888337<50> × 79701589763805892252138133063189365254379704685545583<53> × 9121860314802631535729338714627536721870308627534265066967795115502591<70> × 101499361822050618688889052583469107885032617181747230738541368891413069613909203911482082771871211723699344087<111> |