Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
187: | \[{15^{187}-1\over14}\] | 67 × 463 × 2333 × 8537 × 17744057 × 1045002649 × 6734509609<10> × 260023469773321<15> × 3916703999765344129<19> × 7720616859833014920244488148559526650319156453154610617626507282349907796702605429692105538461207118232246612527035805386213820728843324699199716097<148> |