Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 553: | \[{13^{553}-1\over12}\] | 3793 × 16433 × 5229043 × 11648224192151<14> × 613802817273941<15> × 6709792556882923<16> × 761734015555747150756421<24> × 40968172879203880677368864927<29> × 1999561631486182208460037804951465687912381337222920142652723329<64> × [875363102783240429339289332269770760668755339871088434889693917082983757036002012935680525167928956450920867928455338435040538343696337150139288687456756469038173364267866941699091632944023116368411976982320271131475822207758820539507250986381713937071649818264431788319465392601481949509794604315017152199736763099186706830064591861163138818806183697048707379126820096619785874579216816927388838356191713232724993720959624401320902672619737<441>] |