n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
200: | \[200!!!+1\] | 3 × 907 × 5658420840431<13> × 3811484351794558125665491908488848788900705246755603<52> × 10458933904186663704594658369556506047050269758248433126517<59> |