Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 400: | \[{15^{400}-1\over14}\] | 27 × 11 × 17 × 31 × 41 × 101 × 113 × 401 × 1201 × 1361 × 1489 × 1531 × 1801 × 4931 × 7121 × 19421 × 46751 × 115201 × 131381 × 179953 × 9555151 × 13535373521<11> × 133390439104361<15> × 34800625873379851<17> × 7112705843777290751<19> × 293260235255815351034801<24> × 1347970508807317602142601<25> × 2342027117915665091812321<25> × 249097950919860276331676254948801<33> × 5276658969583784209292870346873232901<37> × 9070272476798040556039863436042596764887469094578088096932337706617401<70> × 5103096049462643603538585931350739941417950494093965816665052802548406802533168064479646352786595605500730104402845963106082336001<130> |