n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
194: | \[194!!!!-1\] | 6553531975221893<16> × 29641549089995805119021329<26> × 79778758346267414620573269218557253323045002292867<50> |