n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 85: | \[85!!-1\] | 2 × 69529307 × 304294809809<12> × 323842179519840206969<21> × 3326894351577774574391021<25> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 85: | \[85!!-1\] | 2 × 69529307 × 304294809809<12> × 323842179519840206969<21> × 3326894351577774574391021<25> |