n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 393: | \[393!!!!!-1\] | 1886467030473388663<19> × 48093448686533874629139179625134831<35> × 721096954308168514842119110545910741266011040515567227<54> × 26416681977945673408523820148229902752328221909663087173147191381<65> |