n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 291: | \[291!!!!-1\] | 2 × 113 × 111577 × 167025002357167<15> × [26397444786807625047013496210345777181935921029270610645708012787899183325632672560776964950201596085753812405613336761741936111<128>] |