Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 555: | \[{15^{555}-1\over14}\] | 11 × 61 × 223 × 241 × 4441 × 4931 × 9769 × 32217011 × 39225301 × 76736743 × 23916007091<11> × 261185739851<12> × 2474070455887<13> × 57029088409861<14> × 29645965890637091<17> × 661198877270593946341<21> × 2541924980979082848011<22> × 8985671723916697159306375206873223170546534131329363<52> × 23457480202951784870454072994596287109313034381625131051975238041656751029442005134564483953734134506683701916151<113> × [554774589304684311035753574503044227307598510632194179995278056392412689376871613119748851571338338725913498732028655874930471727183557162908803190007896689487905032952536805388996901558285126816512439943798836841735628949875510944488564754865552991586608055200866436203291458364401553750108459070231330944336978135966559083147796447850241<339>] |