n# + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 69: | \[347\#+1\] | 1579 × 4793361871924428403<19> × 2676767005233908515724708358526628401592806758287<49> × 36990560309826942070521832749917907651082187806062449398287631104149<68> |