n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 230: | \[230!!+1\] | 167 × 3605060447 × 1524358953401<13> × 2035306990201<13> × 5520868599744668457169<22> × [1178245201569349224860745991656481372829673742464759111424208494774709187331973309499496866203820374675778566763365541266419514950151595867276402373047841763242426121<166>] |