Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 208: | \[{13^{208}-1\over12}\] | 24 × 5 × 7 × 17 × 53 × 3329 × 13417 × 14281 × 20333 × 79301 × 86113 × 264031 × 380329 × 1803647 × 407865361 × 2176307537 × 224277684782113<15> × 1418792215861230619657<22> × 7009558351001043033313937<25> × 161343579388091039418006351540289<33> × 161620459915411696660342655846536692499513189789180520449134770510189441<72> |