Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 416: | \[{23^{416}-1\over22}\] | 27 × 3 × 5 × 17 × 53 × 157 × 193 × 313 × 1249 × 1873 × 3697 × 139921 × 623009 × 836369 × 1117793 × 2861561 × 47691619 × 278640181 × 480393499 × 9542916688241<13> × 3829141917458729<16> × 21001515080686141<17> × 15887591750468908417<20> × 736868920565558735424457780790315662459263032384484327940915657<63> × 3183420693479274478225515768163991816011172268172959982132726448042985056316406190141066687699137099601<103> × [2265593953778947619294933960995152951168614122314397990916264128041779149903537280815272269278531791749357602666893899017608060383927404381744456242710069974878859783448228073755597142593362930211973981971422347000947765698066803953522638936848198460476729889<259>] |