Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 188: | \[{13^{188}-1\over12}\] | 22 × 5 × 7 × 17 × 36097 × 75389 × 183959 × 19216136497<11> × 498851139881<12> × 99886248944632632917<20> × 534280344481909234853671069326391741<36> × 3245178229485124818467952891417691434077<40> × 11115817275335148917954015002557952566307536942860218007811602609261629657<74> |