n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 216: | \[216!!!!!+1\] | 917312980761096917<18> × 2048364063861716196853<22> × 84704950232869802288793593181641886802794857<44> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 216: | \[216!!!!!+1\] | 917312980761096917<18> × 2048364063861716196853<22> × 84704950232869802288793593181641886802794857<44> |