Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 434: | \[{28^{434}-1\over27}\] | 29 × 113 × 1303 × 10789 × 13007 × 35771 × 45137 × 1675799 × 4422461 × 14307617 × 928487449 × 68690971367<11> × 6179864417357<13> × 680334432770413<15> × 14528481352625045787073<23> × 104175305182941687128096479<27> × 280321817417013527271954418037<30> × 410052669952271695361925427243<30> × 129178616440438989375512232058753466414522319559518282307513186726122935369817578585687<87> × 1600101159534638188153551549933135677270923789464942946379965292976170967223231518093628222850813<97> × [436444397156854051403985511588732786487107210263472777011049993332699339669045957133343049251863234200776473597595618734672760576873738739929402479926435830664802354236059261290376853000432285991278287542991747802205045095027117413490290027097433<246>] |