n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 244: | \[244!!-1\] | 853 × 93901 × 1924459 × 516940043 × 754197541 × 786162716217969994276103<24> × [11113039997993709955760228604567993322816596813295532859886564681089180379529406789343112945650572659065886544648921839445987865842177758747232800687989685936161391994343713951924742733<185>] |