Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
338: | \[{3^{338}-1\over2}\] | 22 × 2029 × 4057 × 351859 × 398581 × 797161 × 163264150141<12> × 7336932438768271<16> × 25752967047580308239006833030039254422639813234017<50> × 814222556753878193601980463083668707558864014894642043902929<60> |