n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 212: | \[212!!!-1\] | 6521 × 280207 × 546071 × 52490484679<11> × 361422617429<12> × 412821587873004467606712387601557578259215551<45> × 145529201951710543540429653366458698988656148253051947<54> |