Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 544: | \[{19^{544}-1\over18}\] | 26 × 5 × 172 × 97 × 1372 × 181 × 409 × 3833 × 15073 × 563377 × 3044803 × 3099169 × 29935777 × 242403137 × 334655201 × 411373889 × 19918364161<11> × 99995282631947<14> × 3084256577008769<16> × 1486811410142377153<19> × 274019342889240109297<21> × 1433250916087597060721<22> × 2168875009642198021909889<25> × 2951375082485565069654899490529<31> × 7192798772571252788371365664933921<34> × 15333095456657598053138817864448807737966993529<47> × 197661772763886782414648402987289548229725166305968034987558179673781315847564029960335402365704962774410569040802498598237224060025356533041223314383069633<156> × [12725249267777314624784588352450262360738563462894303561044479611900935591848072685545900963289406803473225481150022241647430244616025395006710514585378665687553076839195330666179579492875127516740835244935476103410060022229613249<230>] |