Base 27 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{27^{79}-1\over26}\] | 37520893 × 432853009 × 392038110671<12> × 145171177264407947<18> × 52802131282482966001751707837<29> × 94251934933904430405353683133566414129<38> |