Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 500: | \[{19^{500}-1\over18}\] | 23 × 54 × 11 × 101 × 151 × 181 × 251 × 911 × 1601 × 2251 × 6451 × 79151 × 127051 × 879001 × 3778406501 × 16936647121<11> × 675303194549101<15> × 747596648084101<15> × 5061512699665001<16> × 36035657195482151<17> × 590165627314172101<18> × 3545449651653764401<19> × 67280788110300060936879628751<29> × 888843497144884855921118532379883456033513662335253146713182567562637179651178373392894831872501<96> × 22597585919862548669109108437732379856512024344072087442465666261084774066022513975615768645737426290209083403501<113> × [1112858275583986825949202076233553997029239356388692003077517061181170213786754540363856840856447363766833844511926191425201858074574291800744607383220250208915786563130027759257559359011878487042257357681975452719320412436233444908958713001<241>] |