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Seventy-sevens is equal to (7*1070-7)/9, or 70 copies of 7:[1]

7,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777,777 or metamathematically with interior superscription as 7↑687:

googology

Its prime factorization is 7 × 11 × 41 × 71 × 239 × 271 × 4,649 × 9,091 × 123,551 × 909,091 × 4,147,571 × 102,598,800,232,111,471 × 265,212,793,249,617,641.

Sources Edit

  1. Template:Citation/CS1

See also Edit

Repunits:

Googo- series:

Googoople- series:

Googolplux series:

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