Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 443: | \[{8^{443}-1\over7}\] | 887 × 5271670883383<13> × 207818990653657<15> × 14749160056100581173587085971612876148889<41> × 24710423239051120660271179307312048226282449719<47> × 123219439267346362049744425289349676468781136823956005602631224069302162695430546376768705960936201429580820215522273<117> × 38360331957525089991784308184741477610204104140635837666499214977790455569983287784154125967319153332852232926865853163258728318170743639516034496795616020547291932063<167> |