Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
86: | \[{17^{86}-1\over16}\] | 2 × 32 × 1549 × 8171 × 279119267104661<15> × 3075877724153666279633<22> × 1064542861270580708122635671<28> × 1976815271971094795525780184146983<34> |