Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 357: | \[{31^{357}-1\over30}\] | 3 × 43 × 239 × 331 × 2857 × 6301 × 78541 × 637603 × 2112727 × 917087137 × 1961163283 × 2346688669627<13> × 2563210372003<13> × 2813432694367<13> × 4299055873813<13> × 55648343218960782949<20> × 751670559138758105956097<24> × 261116663697161542351918133573442849307<39> × 2673484072905963425279403748575522050981477588674951678807839850232010414888693188340174590038855339084744897113622927968567994850387<133> × [11700711896870988676181650342943043467035605682153842817764908874339665546858607119556032340526473304254402630345543272627276516186547309723216759164193388132657843563848730144748259033222262354178629897667513489940533<218>] |