Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 489: | \[{8^{489}-1\over7}\] | 73 × 26407 × 150287 × 704161 × 836191 × 110211473 × 355307401 × 27669118297<11> × 165836909377<12> × 116539854237679<15> × 36230454570129675721<20> × 619079222361672204943<21> × 911066556314339913468351173796888655666135594657<48> × 7272744319188731968367956634511312340302967193497<49> × 487800722956953680014893946664848284159151373018507575898014533247194363908819591324762758970689<96> × 2252536717749479854304344476711248910042326272988477462184224149467959691035462437748933613539138380274243948449893739250180493313207<133> |