Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 333: | \[{15^{333}-1\over14}\] | 223 × 241 × 541 × 4441 × 9769 × 21061 × 32217011 × 76736743 × 2474070455887<13> × 29645965890637091<17> × 661198877270593946341<21> × 8985671723916697159306375206873223170546534131329363<52> × [108538360490490355242969315967829745698731591607772293605093002906883598182660249281789277879437040530924776806027327452303059277270796678831526414664429128707227711065127545601401737945331559628199239460411629110846640172551953183023056047267905630856001<255>] |