Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 494: | \[{7^{494}-1\over6}\] | 23 × 53 × 419 × 6917 × 351121 × 666901 × 1037401 × 228511817 × 4058036683 × 16148168401<11> × 22931541257<11> × 4534166740403<13> × 14975869588530371<17> × 125454655753267202797365863162986582917855663926667180423229018480120592386726440386935056325241516674585560762753600602473851644992274401607378216198999<153> × 574328752905780396861673987096625510012427400983992584174524043850379494536741518976383575453140578380893313301607128032071742182631627347187697597061966814385536543806501<171> |