n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | \[231!!!!!-1\] | 5 × 5347 × 15222959 × 1332694368107735834739268511929019<34> × 3385605433680361606469892134117131336694503213<46> |