n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 245: | \[245!!!!!-1\] | 900844238449<12> × 1960495408347670614224621763372887<34> × 6118141905090962835912645654020385929677292255349673<52> |