n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 296: | \[296!!!!-1\] | 3581 × 6180176791<10> × 3060094228815535220917258797252812451659446667<46> × 1742809021514956398914751365580710314291731496833369066241118784710274468631150160730165400007<94> |