Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 117: | \[{13^{117}-1\over12}\] | 32 × 53 × 61 × 79 × 1093 × 4603 × 21841 × 259507 × 264031 × 1519831 × 1609669 × 1803647 × 19440694027<11> × 57745124662681<14> × 462116939124761758477693<24> × 45114444704411724673049514500378323<35> |