Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 425: | \[{5^{425}-1\over4}\] | 11 × 71 × 101 × 251 × 401 × 409 × 1531 × 5101 × 3609101 × 9384251 × 466344409 × 4878161432677729051<19> × 34563155350221618511<20> × 8198241112969626815581<22> × 1459637301997470426565167784030887286118358690253969858715317332218938484792083629761223907951<94> × 357031808538842686268999271729993970136272915965448976217831756741707838470073866405960398092268381301<102> |