Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 528: | \[{28^{528}-1\over27}\] | 3 × 5 × 13 × 17 × 232 × 29 × 67 × 89 × 157 × 193 × 199 × 271 × 757 × 2377 × 7321 × 27017 × 47221 × 59809 × 135433 × 365773 × 475729 × 614657 × 3688081 × 6077039 × 8341873 × 33806737 × 50545507 × 51605161 × 87190577 × 157323937 × 212170597 × 365764369 × 7351568071<10> × 22223646961<11> × 82980511681<11> × 96405770737<11> × 540610746853<12> × 13553512906360241<17> × 2811794511061852801<19> × 23946685543873549601<20> × [57030422682261160816206036797817884441911849242887209479027385589228336405182780903557241802672249654498933440095791895100108215719254079401290120804669195175887938086078756263021146920813027387432344196913820460757076387033852662713770982402212979829668260276480972612103147483172880019588230520619302600097082587708070987917976840205170989560935699924496416566676136976370285718647522079319531571661871292627007763590430922676064540527970492625345506150521154571037256645950784675910375223777802293390597793819<512>] |