Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 813: | \[{3^{813}-1\over2}\] | 13 × 3253 × 8916443 × 1939974097 × 490543245624181<15> × 2709600825365281117<19> × 33934730461823497549<20> × 41508033675559782143165575329219407764100701<44> × 25868527977712808361978066658579889576559130208360024345084977414463027844372456066131<86> × 1042774403606335073835442930974301177527151657123020368709330822769249505467367390967373<88> × 107402365813912729607358629007294978320509951508913631986856307623891940224537405138078818490996981<99> |