Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 187: | \[{7^{187}-1\over6}\] | 1123 × 10099 × 14009 × 293459 × 2767631689 × 107969286569<12> × 157663427378398137465490451049503570558624435143<48> × 8192756471523437656698192153069134177907212606307905399942444487930655397<73> |