Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 170: | \[{13^{170}-1\over12}\] | 2 × 7 × 11 × 103 × 443 × 1361 × 2411 × 30941 × 28152511 × 15798461357509<14> × 617886851384381281<18> × 11435433293542010176161611<26> × 562139171639747303605338416886252422621<39> × 155131480113286544910362313013914659595553405623716429649731788544561<69> |