Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
103: | \[{6^{103}-1\over5}\] | 2473 × 5563 × 160681 × 12767653355301160780822191431160569156710177181791578590824899905497<68> |