Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 224: | \[{13^{224}-1\over12}\] | 25 × 5 × 72 × 17 × 29 × 113 × 2657 × 14281 × 22079 × 441281 × 5229043 × 283763713 × 407865361 × 17254637799169<14> × 23161037562937<14> × 4803378460849459680406337<25> × 17075564227260177641438981577201118063969<41> × 86808413954902577983441884640902080876877984101451476239196772523034586590851007163691087361208682267081921<107> |