n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 271: | \[271!!!!!-1\] | 52 × 6451 × 7741 × 2794988343302387112919<22> × 1593496531666386262098452513<28> × 5586247899047834957899848191189131596671896362366391<52> |