Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 580: | \[{23^{580}-1\over22}\] | 24 × 3 × 52 × 31 × 41 × 53 × 59 × 61 × 211 × 233 × 929 × 941 × 1741 × 15313 × 85087 × 272341 × 292561 × 11410109 × 1075983677123<13> × 9550034760985541<16> × 356760584484267703279<21> × 2028795664420021044654173<25> × 21681035721798173134480290811916768306604332270047243531<56> × 1267250942525134477563184058723615679941843491566608966541767971905137<70> × 1644053684741677343182925103202519659437854007234871021732292756274213188418875271<82> × 312041636040839313720657673181852223330007908029824795059224744520818636081018533360087490775573814813965111625472261299080080920158062480803222146271681<153> × 106624121393328068714797934709483547775578545762722188788914499034788921425180001485707300363691210525249444253982094236941219122897859787339623736919773336544277998473109774083799126733967183008696448250239898175980201796147061980493866984687892005548620975401410764542953328578442762585949097535120232321<306> |