Largest n-digit prime having at least n-1 digits equal to 7.

A268706

Largest n-digit prime having at least n-1 digits equal to 7.

Terms

    a(0) =7a(1) =97a(2) =977a(3) =7877a(4) =97777a(5) =787777a(6) =7877777a(7) =77777747a(8) =787777777a(9) =8777777777a(10) =79777777777a(11) =777777779777

External references