Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 176: | \[{28^{176}-1\over27}\] | 5 × 17 × 232 × 29 × 89 × 157 × 27017 × 135433 × 614657 × 6077039 × 50545507 × 87190577 × 22223646961<11> × 540610746853<12> × 13553512906360241<17> × 23946685543873549601<20> × 59716358541760548549065761<26> × 1448228946058179249880169408969<31> × 5450021641260691824488849292762369003377<40> × 9198623747278131405621764911771534891494863607698609<52> |