n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 390: | \[390!!!!!+1\] | 79 × 647 × 11177 × 44706535873247036322715790237<29> × 62848558045542819492234349139386021525419917217059149<53> × 23342535184082404017245124142881446710664539705032800162957560299180123736272377<80> |