n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 153: | \[153!!!!+1\] | 2 × 1151 × 775267 × 487117957186301531957<21> × 125028282364493933327561799852069619427<39> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 153: | \[153!!!!+1\] | 2 × 1151 × 775267 × 487117957186301531957<21> × 125028282364493933327561799852069619427<39> |