n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 216: | \[216!!!!!-1\] | 5 × 156953058803<12> × 205143083377<12> × 11575990795401611470800624301<29> × 85404083988955798100405434282421<32> |