Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 305: | \[{23^{305}-1\over22}\] | 292561 × 957701 × 5266228211<10> × 4148085526271<13> × 4217468380980037880092527701441161<34> × 237916085520023302947010376750220097331<39> × [157144039717430525292446003660834957122660569592845903344196863691596730354278188295484744943956103885797049035387049751953464484887236922930224905551843408316649337574967180917744280846473582414978322106368769023019815826619541766593714508452295148556074970465409285677539129909864079863878943240119338044531<309>] |