n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 295: | \[295!!!!-1\] | 22 × 241 × 22078277292302403070501596963076326193692345590259580169273<59> × 1541012972264998504285014681662625291498452111845350939572279176657591701263878027309607617<91> |