Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 342: | \[{28^{342}-1\over27}\] | 32 × 193 × 29 × 37 × 127 × 271 × 457 × 757 × 15733 × 90403 × 102547 × 444979 × 465463 × 6364621 × 7508041 × 21084187 × 1420383799 × 62830837877749<14> × 266886167665254589<18> × 2177760100436602723<19> × 5504044949138999959<19> × 31382755830911122867<20> × 108044981035496842464510517<27> × 4652032620781659567810280156291<31> × 1727359273758244662980578809730277978223143029<46> × 3200850424092148422302804053417353662694852976005331<52> × 16162402673550747668321161511653527649222867914537896248629079090513<68> × 3248685880530443569734331123228249890742479520762233983955822347135524687281418861480961765312272534191293309797<112> |