Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 348: | \[{3^{348}-1\over2}\] | 23 × 5 × 7 × 13 × 59 × 73 × 349 × 523 × 6091 × 12413 × 28537 × 74821 × 142159 × 261697 × 1383301 × 5385997 × 19437193 × 20381027 × 32234893 × 37464463 × 1388985225193<13> × 150224123975857<15> × 37945127666529000523013<23> × 11256710946186882997409087921239729<35> |