Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 548: | \[{3^{548}-1\over2}\] | 23 × 5 × 4933 × 344693 × 217629707 × 82093596209179<14> × 18329390240606021<17> × 46249052722878623693<20> × 201820452878622271249<21> × 706712258201940254667826642673008768387229115048379<51> × 108081809773839995188256800499141543684393035450350551<54> × 91321974595662761339222271626247966116126450162880692588587183952237<68> |