Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
185: | \[{15^{185}-1\over14}\] | 11 × 223 × 4441 × 4931 × 32217011 × 23916007091<11> × 261185739851<12> × 2474070455887<13> × 57029088409861<14> × 29645965890637091<17> × 2541924980979082848011<22> × 23457480202951784870454072994596287109313034381625131051975238041656751029442005134564483953734134506683701916151<113> |