Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 510: | \[{8^{510}-1\over7}\] | 33 × 11 × 19 × 31 × 73 × 103 × 151 × 307 × 331 × 631 × 919 × 1531 × 2143 × 2857 × 6121 × 6529 × 11119 × 12241 × 16831 × 23311 × 43691 × 106591 × 123931 × 131071 × 949111 × 3696481 × 18837001 × 26159806891<11> × 27439122228481<14> × 418562986357561<15> × 2109936092650831<16> × 9520972806333758431<19> × 26831423036065352611<20> × 51366149455494753931<20> × 75582488424179347083438319<26> × 5702451577639775545838643151<28> × 33141833204828142196706150379164851<35> × 24710462787135943791475548268920478656481<41> × 13854772173181680651901626546855984966582610663321<50> × 112993216763723572293509811422126922278036735923954184346074567839714750801<75> |