n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 561: | \[561!!!!-1\] | 23 × 22571 × 6817379 × 72631717 × 2800551101 × 39426595353395977803907<23> × 16282377955300321731975749<26> × 1591277950676424428713939947491<31> × [388438571419145473108310030365809503632008468864505169156561381436133431527782091430461425816634654136189234539242325379946235957779014840075004708098745222957177538742124837116763556479993087090451503514899449605691077<219>] |