tables > repunit > base7

Base 7 Repunits

Table

Viewing: 421 – 421 << prev next >>

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Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 421: \[{7^{421}-1\over6}\] 120298224779693<15> × 1169407471026387018305554817094515359<37> × [72426669178272279529557301635748367969737413899910907133089592176125360612434918904204991128185741371227575813773691468370399895603467812085996760531941694878594500440579455091751537583468338090871233932271341232926824195917290063570863081411135981560396750518439646469437603313754868901900942811814659723<305>]

Index range: 421 – 421 << prev next >>