n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 297: | \[297!!!!-1\] | 22 × 2591 × 2329763 × 114573390085001<15> × 1487737054583024229561102535395863737404492731011<49> × 92991122740561625299062632403067732540211775182052222708601798315919857888970137<80> |