n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
248: | \[248!!!!!-1\] | 378437988316067767001969247834849527482956887729655619996516640293881234828218494979118378856218623<99> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
248: | \[248!!!!!-1\] | 378437988316067767001969247834849527482956887729655619996516640293881234828218494979118378856218623<99> |