Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 147: | \[{13^{147}-1\over12}\] | 3 × 43 × 61 × 337 × 547 × 1667 × 2714377 × 5229043 × 28082195177<11> × 1303929619014323295195519453212113<34> × 3725989158126343238165239463083874771558142749910424645682212062545533582110964106770045453129<94> |