Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 427: | \[{28^{427}-1\over27}\] | 113 × 1709 × 4422461 × 147093957473<12> × 584814157619<12> × 1161183987166057<16> × 108152440326426913<18> × 979890910011228838169<21> × 11071894699054087656875578952698529117084924031399006144383<59> × [319654890771370274267484390048358294043865855238423633563295614660952137039624866400930174898002005056566340482236580984777940712960517811488265421776235328549830645790587003652725191725253308104810491690504413699725283016292242442759277225451942521208556896736044826418490817237788280290384309804128308951985278745270783398951693242622174068543589685000569525451633612589803569972053304368524734910551016453166889557957794407701830276340522079411017406137929443613644921<471>] |