Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 405: | \[{3^{405}-1\over2}\] | 112 × 13 × 109 × 181 × 433 × 541 × 757 × 1621 × 3889 × 4561 × 8209 × 155521 × 285121 × 927001 × 1190701 × 53825041 × 2820618974881<13> × 12557612956332313<17> × 773618132427345151923061<24> × 91417291646945974928758274228233220245160681704964483051455036299673876866846481<80> |