Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 451: | \[{3^{451}-1\over2}\] | 23 × 83 × 3851 × 47807 × 2526913 × 6704567 × 86950696619<11> × 5295342260891<13> × 9183412117682309234428195579372695474479792771904536038283293309153<67> × 3017537971282698424088911000106326615088067457781097937308901590111817981796430991503116305216044923<100> |