n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 247: | \[247!!!+1\] | 613 × 1187 × 2175240577 × 846416830984223<15> × [2302693486986890735107258253595177549776508352629684984453392734809691437696495819554999304949030636716483594065584777243938762223601<133>] |