Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 172: | \[{17^{172}-1\over16}\] | 22 × 32 × 5 × 29 × 173 × 1549 × 2237 × 8171 × 26673589 × 130246136377853<15> × 279119267104661<15> × 3075877724153666279633<22> × 1064542861270580708122635671<28> × 1976815271971094795525780184146983<34> × 16890824483749015334125238061891501723572425146936162212389626839115277386569<77> |