n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 206: | \[206!!!!!+1\] | 7151 × 488349215478638918133727250257283353009043530652064981772293382236483253007<75> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 206: | \[206!!!!!+1\] | 7151 × 488349215478638918133727250257283353009043530652064981772293382236483253007<75> |