Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 394: | \[{15^{394}-1\over14}\] | 24 × 3547 × 11821 × 4172753531 × 20845934423<11> × 2898371050355248441<19> × 1628637743047903281357843380265934783<37> × 985258591256363880710821285342452652666278544711<48> × 5007115369239966965453632933099494048800475080967921090792452689575106437727933345923966054160696194307198860440992223900744789097704999380341785552242370357593871<163> × 1260759462029762970980189137554448790656730889518038627787517166046322093722546729315420623161543178475049566619682284024433009553511218275059519159393977196221052640697<169> |