n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 273: | \[273!!!!!-1\] | 557 × 3189899476249<13> × 132667857835351<15> × 170060034142335982765817<24> × 11857359048898072717137810137223861100711452234059141116301<59> |