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79999: Near Repdigit 799..99

First few terms (base 10): \[[79^*_{10}]_n=\{7,79,799,7999,79999,\ldots\}\]

General Formula:\[[79^*_{10}]_n=8\cdot10^{n}-1\]

Equivalent Patterns: \[[39^*5_{10}]_n=5\cdot[79^*_{10}]_n\]

See Also: Factorization of 799..99 on stdkmd.net

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