Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 344: | \[{15^{344}-1\over14}\] | 26 × 17 × 113 × 173 × 1033 × 1489 × 1721 × 20641 × 16781353 × 19623137 × 23668577 × 39205337 × 61098529 × 5519984993<10> × 16112471507273<14> × 38664536016220999<17> × 22987309628787159377<20> × 3187525094785565082363106129<28> × 26656068987980386414408582952871386493955339704241<50> × 9366028893671911526733907581732070789157010459453362607093281789809<67> × 19685900875324893586529369680148727696123610121886197069730075280798273843730421491226181012008088702751585511439458224245490716543301461212457<143> |