n# + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 98: | \[521\#+1\] | 3373 × 3793 × 447481 × 173766523691<12> × 16740177285352542520416709230009284243751013382674856414804666764429458106653942889707236545172184102095173870607140269478370943695826430625263817081242027243705422384108623630284235194654649<191> |