n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 357: | \[357!!!!!+1\] | 991 × 287215175867<12> × 11437772516362623651174527<26> × 8474574955072352655332129776279301<34> × 16254714413902141834024423430245105160451958179951442645650990876881957462224823<80> |