n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 555: | \[555!!!!!+1\] | 223 × 203579 × 20721541 × 7305314789<10> × 122749536414293<15> × [804993586854833248545262283350335674110408973567724144624047089608456270120622526353960682059846735805769215110931038795541648879663192390209619824451887680485855059525232064526135586376344491072128693753218657180590529<219>] |