Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 514: | \[{8^{514}-1\over7}\] | 32 × 1543 × 831139 × 37239639534523<14> × 535006138814359<15> × 158530119801167697937<21> × 518144156602508243009<21> × 1155685395246619182673033<25> × 374550598501810936581776630096313181393<39> × 4000659204579114753312310878847043394855313<43> × 10414600656781734361640396674583500992745231074293966400432773827<65> × 13027720890295991435618986388935656859889526177721153687715156611<65> × 4965395030068548134274243124972075225434447114375481299036593442726326832727934403424309955102162841656341524725641213163998408700663382552888660520657<151> |