Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 115: | \[{7^{115}-1\over6}\] | 47 × 1151 × 2801 × 3083 × 188831 × 1446701 × 723461377501<12> × 31479823396757<14> × 27229507836853201541<20> × 32338809757665390121614112981<29> |