67777: Near Repdigit 677..77
First few terms (base 10): \[[67^*_{10}]_n=\{6,67,677,6777,67777,\ldots\}\]
General Formula:\[[67^*_{10}]_n={61\cdot10^{n}-7\over9}\]
Equivalent Patterns: (none)
See Also: Factorization of 677..77 on stdkmd.net
Table
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