Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 86: | \[{11^{86}-1\over10}\] | 22 × 3 × 5333 × 1416258521793067<16> × 42534656091583268045915654719<29> × 9413099125139413690486707432096974989067<40> |