n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 226: | \[226!!!!-1\] | 1619 × 38766045270872190037048263913409877421437619695533636327887725010610357704387010944671772285321408276714021<107> |