Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 472: | \[{7^{472}-1\over6}\] | 25 × 52 × 1201 × 122131 × 149153 × 165437 × 459257 × 1024477 × 134927809 × 550413361 × 4261190159 × 143400661121<12> × 1187164242679<13> × 17543686562323601<17> × 187381402716244523401<21> × 14683403662888806475673<23> × 6551912456787047841933817<25> × 354639323684545612988577649<27> × 72365309203156796180466302654219233<35> × 820897392402727154889937592766080854712048479741649<51> × 636009759004547488397919092217405802148900763970741315441<57> × 412426576547701719506900910058819351896899180469597662877247193<63> |