Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
185: | \[{7^{185}-1\over6}\] | 223 × 1481 × 2801 × 2887 × 6661 × 219041 × 4805345109492315767981401<25> × 19614484903893800144195694873969090325357462130596323038004994681963459760702504282004516541831276174705279621<110> |