n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 159: | \[159!!!!+1\] | 2 × 3153767 × 8261326267402271175644545789<28> × 6128029059282784428834379787778625051<37> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 159: | \[159!!!!+1\] | 2 × 3153767 × 8261326267402271175644545789<28> × 6128029059282784428834379787778625051<37> |