n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 304: | \[304!!!!-1\] | 397 × 1973 × 13742541757362593483113881396312209920121470171513441218101323141457888999806282364638439555897466163563700896423157472576946479622765121462157259016879<152> |