Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 570: | \[{28^{570}-1\over27}\] | 3 × 11 × 29 × 31 × 191 × 271 × 457 × 571 × 757 × 4621 × 6841 × 12161 × 15991 × 53951 × 71821 × 90403 × 230281 × 637421 × 734941 × 6790411 × 7508041 × 15310961 × 21084187 × 84673681 × 124879021 × 26449432601<11> × 62830837877749<14> × 62305982958547231<17> × 5504044949138999959<19> × [4020661822163429726449801407940373135689454313439412566100622074564851193258304955627014396157071698173397804748339231400300598327991087763949507543823981047129729051639001571879229388386891306521582280568962246945766159000100757570576715669453330878923668665662871186950356082862554046800370350577829018198646188061177601291296868023501294665591491343712250315852247928191716326367700425728845178929432863200302397605496686444603233531130258143759069621315298564572580316559243821847777036823826754711926536542363228872957421715037528479625091413874424114161104191336293825300007525115209693868429164661246827708280800539197630119813635433004141833796483<655>] |