Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
121: | \[{29^{121}-1\over28}\] | 23 × 1331969 × 18944890940537<14> × 485048882823034260032849606234901107993329358116339123768118701<63> × 113109776171276961179918404108881552355241988412072347834059208469733364696852937382987128979<93> |