Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 861: | \[{4^{861}-1\over3}\] | 3 × 72 × 43 × 83 × 127 × 337 × 739 × 1723 × 5167 × 5419 × 13367 × 165313 × 3887047 × 10388827 × 164511353 × 8831418697<10> × 17137716527<11> × 20958338017<11> × 78390786811<11> × 13194317913029593<17> × 84413238703660609<17> × 177722253954175633<18> × 4336790831080504259<19> × 4423364633142650480377<22> × 11306831838018220372427161<26> × 4169136946773000713270790657459827<34> × 32215327209835441806959889495947251<35> × 85801349062601083299583829920647817<35> × 209530011998277670096922500900062393290897233<45> × 51954390877748655744256192963206220919272895548843817842228913<62> × 5006626876280190496416642758625512424067738181047826160968250705189421057250536688879283251582041<97> |