Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 245: | \[{13^{245}-1\over12}\] | 211 × 491 × 1667 × 30941 × 5229043 × 55848731 × 3357897971 × 28082195177<11> × 707179356161321<15> × 1937261271540841<16> × 7502160021223356249745536301<28> × 1303929619014323295195519453212113<34> × 26751236208107865470032096864570607584243411<44> × 1302176948455088316869472183914253216870784080479752275110983495501001727562617168876058951<91> |