n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 451: | \[451!!!!+1\] | 22 × 181 × 21089 × 3510917467 × 640532993993<12> × 11230764984223<14> × [1560402514545823842862381772954892592656507081385471779827054937436096723502117770630321649472273205010730844473223438884322464282811983565514073128959095114355367684243949512020155258836780336469061209513607657<211>] |