n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 418: | \[418!!!!!+1\] | 899233 × 4621691147315693237<19> × [4697951490777139629100279485985448960305266153986957263875021103070109392534302478924001364928095626516031192663134199470665831667156480831494611253326077342077<160>] |