n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 507: | \[507!!!!+1\] | 28 × 2153 × 4513 × 116764326636479<15> × 28757886006616537<17> × [2536281481383740148827341568701457312777932013779719020493594247918947147022988692876846466772725807730237554398374336321587703760494627263011164015319614735467227970223383418256412331799947965016512502250703821999900734969699346655753826423703170043<250>] |