Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 265: | \[{15^{265}-1\over14}\] | 11 × 4931 × 56711 × 4423381 × 19273082604001<14> × 69249662260776479<17> × 4414076558905559947871<22> × 2603667389751346537084259<25> × [157947248714084227125348431483027462166681732596128923775518747265901025663858247274478848986974430857695499887374877596618749036508786272218833014260010073293908336224418081347038975581253894168110579326196142889216681<219>] |