n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 274: | \[274!!!!!-1\] | 1654799 × 30501348720896849<17> × 32360127481130191<17> × 993260505435738659296366914354697<33> × 835894564337486583863014705573679062199<39> |