Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
158: | \[{28^{158}-1\over27}\] | 29 × 317 × 1423 × 29863 × 419483839 × 210997273888433<15> × 8137130846647230437470633042827481307596617962520168674518678043211679476070130190992364701<91> × 589313263529964782995329801507579750620293837153256673100250966378714860373275073567118363081027037391<102> |