n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 286: | \[286!!!!!-1\] | 5 × 109 × 571 × 743 × 1889 × 5000410432880225513874297437331283948721521<43> × 315455312864988371070993168168057966702308875536511944828740251<63> |