Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 559: | \[{7^{559}-1\over6}\] | 2237 × 5591 × 16148168401<11> × 7823113057733767<16> × 166003607842448777<18> × 2192537062271178641<19> × 2283709126651845525041501<25> × [3260539809420703553817091371974723205821939785988263556965713706712582581821349328671110968200166794768497508299327435161194914955269698887791898763843956336593918259446923345367137115674563825061727400293945886882989857144422569080067619951851528842284972732568278143514915792208660935908918367945069202140473665588020217145371591615484799454198528151988063703623179158392994009<379>] |