Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 235: | \[{19^{235}-1\over18}\] | 151 × 911 × 8461 × 119851 × 71364664582217825881<20> × 155043606359390016791<21> × 7777894204597627650751<22> × 70169234660105574400577005075855017842743056666917902427141<59> × [211991855291649702226152614041214256258829932162870819803526480312350160134805341802077743045937280601483768228118519920845390243704375409411422492070206992434505631<165>] |