Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 241: | \[{17^{241}-1\over16}\] | 4270938483377000521<19> × 255561708074815032581<21> × 538341577673756966139827<24> × 5554287383281460171037997<25> × 6612485026580934048615077398307834049792038498884687629642074820278678829479685834908402622319710897171229252844150025649766829867478960694835496420877366708707873710172982221768339922960826681011588901495379<208> |