Base 26 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
68: | \[{26^{68}-1\over25}\] | 33 × 677 × 1123 × 3299 × 4999 × 1935281 × 1315750871 × 83041563757<11> × 7702754097061<13> × 40385656825829055229<20> × 2968681525990533400813<22> |