31117: Quasi Repdigit 311..117

First few terms (base 10): \[[31^*7_{10}]_n=\{37,317,3117,31117,311117,\ldots\}\]

General Formula:\[[31^*7_{10}]_n={280\cdot10^{n}+53\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 311..117 on stdkmd.net

Table

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