Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 184: | \[{15^{184}-1\over14}\] | 26 × 17 × 47 × 113 × 277 × 829 × 1489 × 2393 × 6257 × 31741 × 81421 × 488153 × 825287 × 132653513 × 3549551867 × 40193672100977<14> × 3046462151831565769<19> × 3230238627505403797<19> × 31334460260334425151862770518883992405529140050544990900132822382762369048435867726667890300096312840001<104> |