Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 237: | \[{13^{237}-1\over12}\] | 3 × 61 × 3793 × 16433 × 6709792556882923<16> × 10810634831748469<17> × 1999561631486182208460037804951465687912381337222920142652723329<64> × 50903468661785588207051940404895665901614075782006892713301422727154778238451013003186892992353502858567393500049656850518285684754795538053513949151161216341<158> |