n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 505: | \[505!!!!+1\] | 2 × 877 × 14503 × 86077 × 3149361904831560281<19> × 177331436423871803977<21> × 4066312880549750784127093<25> × [127770532061935922836576393953266875227710995036419811753478840131850341305597946185910270625149741027053535890720509930880061697326684698686184387334617617202573541761129381015608669171428529350137284113262562289<213>] |