Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 105: | \[{13^{105}-1\over12}\] | 3 × 43 × 61 × 211 × 337 × 547 × 4651 × 30941 × 161971 × 2714377 × 5229043 × 3357897971 × 995277238201<12> × 707179356161321<15> × 320553148774196624469658887398942218735081<42> |