Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 389: | \[{15^{389}-1\over14}\] | 246260341 × 389819431613<12> × 459966502680317<15> × 498597448779006086527<21> × 624310198363930100683<21> × 40592286089617966423711980852134417<35> × [4043836420412905159361006416470792391996949586139196788833035345229963746551994701012397732738218964995869753689531751902732096737895148352055156651126301524321417509322606578895535620658377335806100439024118849303250496309760057031294396231567450298954460225248773768764216586772012575224258683644943239818561019659762329640206701121381356957073<346>] |