n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
275: | \[275!!!!-1\] | 2 × 2288660120479<13> × 11369160718931279739667<23> × 323982287818272511432197778160550162843777577933013112815174575082508053586174767248309045005768819988009<105> |