Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
193: | \[{10^{193}-1\over9}\] | 773 × 39373 × 561470969 × 639701219449517<15> × 4274417556076113498947<22> × 26409540111952717487908689681403<32> × 447798287131284928051408304965265782892174953181087929<54> × 2010734797237741296291807480478464451813538790168907747<55> |