n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 236: | \[236!!!!-1\] | 6637 × 125496106407621565715167<24> × 155787933240211599018833306073437<33> × 355162579987660118062584602520508606302700152585333282313<57> |