Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 315: | \[{15^{315}-1\over14}\] | 7 × 11 × 43 × 61 × 71 × 127 × 181 × 241 × 541 × 883 × 4931 × 21061 × 123229 × 399043 × 1743463 × 4167731 × 35768881 × 39225301 × 1470374630929<13> × 2817034275427<13> × 269297040407347<15> × 53096945644422356461<20> × 24596480723711374110433501<26> × 92978587355640205970336221<26> × 12340745958492257916284855626741<32> × 44036458798728929973640280975880193391485565761<47> × 14452808931909370052319038822985089075401357757547435926564753268717773158881303826534696469389585841778960401510161<116> |