n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 170: | \[170!!-1\] | 883 × 62233 × 2111420101498045660742518220868869<34> × 14550437476808825774503279860410402694134639<44> × 6455358794119055302935775125395222250953914529974823615758998085200551<70> |