n# + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 58: | \[271\#+1\] | 15559 × 3423571 × 7683041 × 57470069653<11> × 13463502478677016249929739465696540448438503064479599563030011569069175818093492743<83> |