n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 268: | \[268!!-1\] | 15941963351<11> × 486231072101<12> × 3878501975431384729974901177<28> × [1443662612490051148480259823160299628450159482370846268414932474372378801333877069872586573814770197445369484635517660621934375227169426242044359488965547718181357903500043028619753939189152530991229581412235745031532237<220>] |