Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 455: | \[{13^{455}-1\over12}\] | 53 × 131 × 211 × 911 × 1171 × 2731 × 10193 × 28211 × 30941 × 34763 × 156131 × 264031 × 1326781 × 1536991 × 1803647 × 3387931 × 5229043 × 7074341 × 140890751 × 3357897971 × 1432916351231<13> × 12708750043081<14> × 707179356161321<15> × 71442881968439190301<20> × 158943831041162255277151<24> × 11514639075191840963064691<26> × 72019220497491955875703699<26> × 2100836464413549808726148396086744432111<40> × 4360058677522333400302555160685378238981<40> × 2872041166110136221736114736441244006469405451496071824211341<61> × 605457633559204450628519801172443249835677180648017007471390342941<66> × 2539643796888895871783545942921410900490647765542611684530749298851<67> |