Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 288: | \[{28^{288}-1\over27}\] | 32 × 5 × 13 × 17 × 192 × 29 × 37 × 73 × 97 × 127 × 157 × 193 × 271 × 757 × 7129 × 7321 × 12241 × 24481 × 47221 × 50221 × 59809 × 102547 × 151201 × 337537 × 444979 × 614657 × 2012449 × 4338337 × 7921153 × 33806737 × 51605161 × 168542177 × 188878213 × 343785529 × 365764369 × 1350615169 × 22223646961<11> × 301407243681066768937<21> × 20373094654699866379529360122950128475486289921<47> × 1163274799691679507451230132400597318921806951299089<52> × 3162723465710613015319110399553531379859391904125124660810302832783675911538918965405804220379909597663927091424838633374563201<127> |