n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
277: | \[277!!!!-1\] | 22 × 47506988290556553687432649261382807947322674354542680304958114441466678882443304429455151353932851059283508577928740643704230854988098144531<140> |