Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 258: | \[{6^{258}-1\over5}\] | 7 × 31 × 432 × 173 × 431 × 7383359 × 2322118361887<13> × 1048953903129961695599<22> × 412482688627178079807598675848631<33> × 115814113322099366440280889676998813124941173548805953<54> × 4508900190610152350577887323102224338300552415040178248330163977<64> |