Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
161: | \[{10^{161}-1\over9}\] | 239 × 4649 × 6763 × 472341157 × 11273170771131750391<20> × 11111111111111111111111<23> × 1626777403161656797092007877<28> × 15362898429170396757717888856328974146292496901433891193564055671816191643<74> |