Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 175: | \[{7^{175}-1\over6}\] | 29 × 701 × 2551 × 2801 × 4733 × 2127431041 × 77192844961<11> × 31280679788951<14> × 1237578612719152201<19> × 1094471317606762277701<22> × 271796439196451766191391111220539009912588742400633481231401<60> |