Base 26 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
89: | \[{26^{89}-1\over25}\] | 4273 × 4451 × 9613 × 62701896248107043<17> × 10147432015661402599005968093<29> × 101211306087301593532167703017233<33> × 2909193955714051682383849179960690583<37> |