Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 615: | \[{18^{615}-1\over17}\] | 73 × 31 × 412 × 601 × 1231 × 2711 × 501841 × 558721 × 1505521 × 3811279 × 114341047 × 448890223 × 6386425681<10> × 1064115526969448071<19> × 3690199547499754891800937863511<31> × 394867037344695962525971723264825927<36> × 14153782597443172550196845634941164999799977<44> × 4072973180849863372572172087991305512339741545334128425746782506982246657221066933716711082258015117519873758864013805612464335879835779426594361062815219613526505032373906260848761<181> × [342187148970199641623221825591295778919837862824606390899209050105531700057759258563886698362794017716390219314232712016803774325437048092388207158075107474167621519948388296931522498397837452864130958959605786297741668680483825739316774391278403074521408789040174848116045822705915769479169478926447950532996149348653290769280868907693090960288506366459696842560598802289642889612442903331238631<396>] |