Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 237: | \[{9^{237}-1\over8}\] | 7 × 13 × 14221 × 66361 × 2275201 × 37520893 × 432853009 × 327220181191<12> × 392038110671<12> × 145171177264407947<18> × 567239060331150635317<21> × 217536018992883276988362961<27> × 52802131282482966001751707837<29> × 49269609804781974450852068861184694669<38> × 94251934933904430405353683133566414129<38> |