Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 488: | \[{17^{488}-1\over16}\] | 23 × 32 × 5 × 29 × 977 × 1831 × 5857 × 17569 × 41761 × 71249 × 536801 × 15103230859721<14> × 528720501902111<15> × 122006758073875926050108551956153540207040619546761<51> × 2492864726213168745263461117953694188847186919070439547298101<61> × 4722743517602912319810923441122498349478034813612513477513781<61> × 17508519772851994662602302569945690991556829180045202564157820672276468887335517<80> × [291784752724249659059606753942632424549164048194359511396858861923909667580128234803547376681936819515008733260624471225764038154566290533348196568829437413503734126448958301483375965586303700093388608589586988963070976554789184437573445040797641612403584344050227886116419462557497533537<288>] |