Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
62: | \[{15^{62}-1\over14}\] | 24 × 311 × 958459 × 12871001296201<14> × 14572134604887829<17> × 660603097954354915026956925328631<33> |