Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 787: | \[{4^{787}-1\over3}\] | 942827 × 9951597611230279<16> × 96512008100928793<17> × 5405369360996178738798259049<28> × 44773841130192799148039136997839721<35> × 171124793552074153093621463907993111755630713094272377046079303<63> × 1729064962458961255320417417955691339162974743882218922830411737050563040937<76> × 687689323414372258851357936271781467276127290538128153302982669471071649060959460850591919433<93> × 4952443062243070276982618235553391899025005974177841614150652967038194584843406813849759422158280687571671371337185220166834929387719842135047<142> |