n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 283: | \[283!!!!!+1\] | 432213144995816070638036605079748153808741619<45> × 86520974497111102242221898888148690410221834503788707686366118380065851<71> |