n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 267: | \[267!!!!-1\] | 2 × 141897871558438644111708618604862315101089113327945901987403841<63> × 797173971387118529170543396024057216327389521715888063259241829991768307<72> |