Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 424: | \[{15^{424}-1\over14}\] | 26 × 17 × 107 × 113 × 1489 × 1697 × 648509 × 4423381 × 728206433 × 6618762113<10> × 80469189271<11> × 134886148193<12> × 144923043227<12> × 19273082604001<14> × 69249662260776479<17> × 2603667389751346537084259<25> × 1628505112656797934760689563<28> × 266257406176802127552803837537<30> × 699303132993397297235043980358642906319705163618646917141738170083096532090488601301<84> × 431272176616954814359724520453375976818579639258205878050990263261047716865831419456258898281369133581874701956333806703525639569035514611737490610087303921239037218832940708477372285256166849436820408019982312739380696206529<225> |