Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 475: | \[{8^{475}-1\over7}\] | 31 × 151 × 191 × 601 × 1801 × 4751 × 32377 × 100801 × 524287 × 1212847 × 10567201 × 18020551 × 420778751 × 634760551 × 30327152671<11> × 10657302892385206201<20> × 1491477035689218775711<22> × 8463634936210536760201<22> × 25349242986637720573561<23> × 1369738735713888876695951<25> × 113709467433878120743807151<27> × 41663891569995213211790678603293227079435201<44> × 170617159758027087771086981194610206694353113401<48> × 2386700386103968366479668810198757990691602304558127880694319714047673453169272781312913247845179666572053739121791051944951<124> |