Base 26 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 121: | \[{26^{121}-1\over25}\] | 23 × 25169 × 65539 × 97395563 × 19733601454447<14> × 711354307654206198496239272304671<33> × 2476181398700208337493034254583889<34> × 507139619720616245941767551532142732275859281103792945464428954425416433<72> |