Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 897: | \[{7^{897}-1\over6}\] | 3 × 19 × 47 × 139 × 3083 × 7177 × 486643 × 1045903 × 7524739 × 44975113 × 830837281 × 5240570609<10> × 16148168401<11> × 402011881627<12> × 31479823396757<14> × 64432450872271<14> × 235169662395069356312233<24> × 124017815182557414772494313985201<33> × 121219249940833404770079915022116301<36> × 2060181432480702325629313427730099160573042198860249916720891929027774498119510626775963185967360438023554017392240125869222053<127> × [31767642092832909119262468482486571636883948281296798201576739506815988223044689680615419878392852544033182552262583330981980666648521151127733683174090055861897981044283815391288398071703437625909542548907293101834931863815075176376349680986669848976739205933470819154814312936171894353153123003682536047641930785824564339373929664206768919438860130213282377708455373620321442901595990109871944136406812036153300733051025871908429273<434>] |