Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 172: | \[{11^{172}-1\over10}\] | 23 × 3 × 61 × 173 × 5333 × 11862832433<11> × 1416258521793067<16> × 42534656091583268045915654719<29> × 9413099125139413690486707432096974989067<40> × 1449361076647763556046480383311898979520917866579543803095034909526729197869<76> |