n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 210: | \[210!!!!+1\] | 107 × 431 × 461 × 8704009130953883<16> × 144905662104207941079998267508789794316632538535613989925020544093377466308531<78> |