Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 102: | \[{13^{102}-1\over12}\] | 2 × 3 × 7 × 61 × 103 × 157 × 443 × 763879 × 15798461357509<14> × 617886851384381281<18> × 535301324317729848039542278039<30> × 476622264829847630603684799705499201<36> |