Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 552: | \[{15^{552}-1\over14}\] | 26 × 13 × 17 × 47 × 113 × 139 × 211 × 241 × 277 × 829 × 967 × 1381 × 1489 × 2393 × 3877 × 6257 × 31741 × 81421 × 90529 × 488153 × 825287 × 132653513 × 434956681 × 2562840001 × 3549551867 × 80732172121<11> × 40193672100977<14> × 3046462151831565769<19> × 3230238627505403797<19> × 67740995206699955121858385321<29> × 153908199071740625749971976183<30> × 31096175767640183484106599269134482322375555399<47> × 5132363219348479540848326903577367163703160346141096012834898761842489<70> × 31334460260334425151862770518883992405529140050544990900132822382762369048435867726667890300096312840001<104> × 981906584564660605661312021244636630661182648308096303467993165732192421323312939838802239523401441677848212471023255981412443234019173401611682019501903791833604733310141019322423737555525946510878662160001<207> |