71777: Near Repdigit 7177..77

First few terms (base 10): \[[717^*_{10}]_n=\{71,717,7177,71777,717777,\ldots\}\]

General Formula:\[[717^*_{10}]_n={646\cdot10^{n}-7\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 7177..77 on stdkmd.net

Table

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