Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 545: | \[{8^{545}-1\over7}\] | 31 × 151 × 3271 × 213641 × 644191 × 745988807 × 37970664481<11> × 63615616591<11> × 18109412991311<14> × 199189965225995911<18> × 2511696210834096991<19> × 8137273385149564801<19> × 20597276734348736647<20> × 33157029794959983067039<23> × 88116165754061081804047<23> × 870035986098720987332873<24> × 7647513170903349335637401<25> × 23548299583428753078153276336578257655370097978102396602253308281<65> × [82681113654529585531410204246998845784176344108102783668988501542374265977542122485784278825407275101341966842477118120187624971530417824867316236914577947382649282010590627422208673489476654624881<197>] |