Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 470: | \[{7^{470}-1\over6}\] | 23 × 11 × 191 × 2801 × 77081 × 10943951 × 13722816749522711<17> × 63681511996418550459487<23> × 2963635864903802720551341744191<31> × 655417289594537954307682339857743931943<39> × 3526044283547082417510281214088597814021244392943907181<55> × 2812894619735804087343816418261851587705080375647708714001<58> × 40810450225330232959927973188931960284326872419503599862301<59> × 95932320890617893275692373129662298731815782892355053309279163270297790758653791048485352892704401<98> |