Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 345: | \[{3^{345}-1\over2}\] | 112 × 13 × 47 × 277 × 1381 × 4561 × 9661 × 31741 × 1975931 × 6784081 × 76675561 × 1001523179 × 6273542442241<13> × 2461243576713869557<19> × 52370346649565455417091<23> × 6141386692091569467123298841637896953726147859700335918221<58> |