Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 658: | \[{8^{658}-1\over7}\] | 32 × 7 × 43 × 127 × 283 × 337 × 659 × 2351 × 4513 × 5419 × 12503 × 200033 × 1681003 × 9106063 × 13264529 × 270447871 × 4375578271<10> × 35273039401<11> × 111349165273<12> × 165768537521<12> × 762394321774681<15> × 5135123689810129<16> × 9585228595374769<16> × 646675035253258729<18> × 512512927677384344303149537<27> × 9934018379230425610659608142885693781941091888647157503817<58> × 359687424377961714750891763743933975334959200103759485840227631801<66> × 5154800594447744843963619802983305243869440153396482199500404535444787331<73> × 420954953762554563814395940606480955192692522015271757620076936392240512531249<78> × 5210534962515057847841322440891322497979705533451447703876580568998286376287515867946202891679609184135123687873258361626007<124> |