n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
265: | \[265!!!!!-1\] | 199 × 251 × 3491 × 35531 × 387850117 × 810326037462467<15> × 24373993645229424301351738013080273792584416038666356685239420958391429<71> |