Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 662: | \[{8^{662}-1\over7}\] | 32 × 1987 × 5297 × 23833 × 25819 × 55609 × 2983001129 × 7520796641<10> × 75904445347<11> × 16937389168607<14> × 865118802936559<15> × 857491387188810516016046647<27> × 8530674250842274717434530683<28> × 921777666286057213147728970951<30> × 1438390199144030563364806863704510189429516419097<49> × 65967064596937923731173645567055969095918106670911362489824961<62> × 298542624980197463613767215333569428005686468835821253721796682625551919<72> × 24831572327443844177681961417123922207339247769953151737010425273000008631957864690005874511091219933112266348786653769<119> × 2609632444767351818039224561381428070568966964983359447855731078649164681952162319892295956611169166052959992530327506629959995031431<133> |