Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 172: | \[{6^{172}-1\over5}\] | 7 × 37 × 173 × 431 × 1033 × 6501601 × 7383359 × 1048953903129961695599<22> × 2914764989376043020733<22> × 412482688627178079807598675848631<33> × 11510167124054813592781820845997449<35> |