Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 259: | \[{20^{259}-1\over19}\] | 29 × 71 × 32719 × 65269 × 2889957151 × 48452289872449<14> × 98251725447004143701<20> × 383493384240205993228059557962159<33> × 21970991885930570026661575652295529<35> × [956529817371380365239026457415547399508844466631620155294398917938481962597599350339077607482325347306524563181889502064792186750330088551619069475434051621385569592786161834544201112531847805275972208074659788561<213>] |