n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 247: | \[247!!!+1\] | 613 × 1187 × 2175240577 × 846416830984223<15> × 11994681765126101139536437594536997487<38> × 191976205127996767397082916001055201078236725279003523002870268378113686130101539503655800632223<96> |