Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 639: | \[{13^{639}-1\over12}\] | 32 × 61 × 2557 × 6959 × 12923 × 40897 × 201499 × 434521 × 1609669 × 2200717 × 8227339 × 39355159 × 74090773 × 5990431171<10> × 176019688909<12> × 24385215615829<14> × 34078015035971503<17> × 13258198289848902942439<23> × 504649541791910254264659793435883391598383106891<48> × 1016705137474747135476535700217615993757244294651630647<55> × 56573583882629131201397586942443243853379490390398336588076200421<65> × [41514825291874344812256958618276812747524906106555810770653261749065082915924828044289922460543953599375562099234918250215774169805915756307559737254417365245964212946536257389122690855234457630659615247198203709907612824192462300477602807236373689603137616496968159608346851955607355846937326795239564420787871582338538661224492199948849303470750660654407802035231408463836000693649697267611085099244804911<407>] |