Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 246: | \[{13^{246}-1\over12}\] | 2 × 3 × 7 × 61 × 83 × 157 × 739 × 638453 × 1340947 × 247072069 × 6740847065723<13> × 1374332707191583<16> × 140299545168523469<18> × 45111380897407574171<20> × 763604898951326591407<21> × 34241383511160276465403<23> × 915180098788603185080359<24> × 2500231913819762291766481<25> × 58047259977349384372529747126587<32> × 840389424860835825623450583122712313824595083887846329<54> |