Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 685: | \[{9^{685}-1\over8}\] | 112 × 61 × 4933 × 8221 × 119191 × 1422061 × 5507401 × 217629707 × 26636505319811<14> × 82093596209179<14> × 661718838635930238791<21> × 15761953912526059950422004668720291591<38> × 706712258201940254667826642673008768387229115048379<51> × 108081809773839995188256800499141543684393035450350551<54> × 11016318749871852760322316258453817392697880515688272378036257133032902773065699182945267971382121192119504264040784673046435187857254121785484732781605576998361118366508898671<176> × 48523222989733049484924293543476914078384843937636593836292372592014897268485354040866423506118861260342244403302363560695279387925993837793854217010682516449379901333094612636751493210700378369998069360786085757680343797466707520149046060015024087251<251> |