Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 493: | \[{7^{493}-1\over6}\] | 59 × 14009 × 16763 × 127540261 × 2767631689 × 71316922984999<14> × [205410855685563333685445724050365814101142957767541043130428707262640029117983693498187891365242273984009999691490931990302677063694131186878081107835775431815501164866159449954091543930272827296039417195928185860135986728312434498673870783573737497636280296920443189999068773840414047990028612954113983733111101141340934550090781189128656108185581585787768685781254724687027<375>] |