Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 846: | \[{4^{846}-1\over3}\] | 32 × 5 × 7 × 13 × 19 × 37 × 73 × 109 × 283 × 1129 × 1693 × 2351 × 3761 × 4513 × 5641 × 8461 × 1681003 × 1768141 × 13264529 × 54865357 × 85693033 × 4375578271<10> × 7484047069<10> × 35273039401<11> × 111349165273<12> × 165768537521<12> × 180846660913<12> × 6596828416459<13> × 140737471578113<15> × 646675035253258729<18> × 5007152232772194889<19> × 270097268484167653999069<24> × 849951419916202422143761<24> × 215281412690558214223757449<27> × 1617189999730415801728461273583<31> × 4616961956733770288547566089213<31> × 65822575300775658772854198368766558032903129506601623<53> × 247094426455224525461990628799903470541784293855807684095709<60> × 241158858171883059466688969410187157879210229879717221093613507<63> |