Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 548: | \[{19^{548}-1\over18}\] | 23 × 5 × 181 × 823 × 2741 × 7673 × 15619 × 7633341341<10> × 1292325699101<13> × 5789399623993<13> × 36603436720141<14> × 1057482046145647<16> × 40134106409234635219<20> × 710404429302931358161<21> × 989970156826580846743<21> × 1327465804978609534324643782075310684292154194882733<52> × 2699736420089344434498160508786078884880100186308994202680299809374424823134274949107<85> × 21618976272508827148603596415717626809383494500189496950837633158205352844663048335789248104370963162240902873607691899471742101181773<134> × [335504774039070903394817152631135739055351530881704076547180584370156080288088728648017950912287374943333429217781138124039995914371408645623899376991534418945292641824719255385525634574624312397796808267511255232256388334225685945974691427385030016354640226040235735623819359000145848917<288>] |