n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 282: | \[282!!!!!+1\] | 3181 × 215659167568379<15> × 346085435611583<15> × 47107103688405184347021975257424194839313040004119337514360555757467234652925960609<83> |