Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
86: | \[{13^{86}-1\over12}\] | 2 × 7 × 173 × 119627 × 12566837 × 8001003293<10> × 346982008721<12> × 9391016904700369<16> × 552781743698966779174737704265497702530829<42> |