Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
713: | \[2^{713}-1\] | 47 × 68449 × 178481 × 2147483647 × 335203548019575991076297<24> × 25302796036126213353739363322307560110912714814142460639<56> × 4120244281266653396296957792500987847361734649718254162380360903520821340784053375183825542777493894566793029100537<115> |