55553: Near Repdigit 55..553

First few terms (base 10): \[[5^*3_{10}]_n=\{3,53,553,5553,55553,\ldots\}\]

General Formula:\[[5^*3_{10}]_n={50\cdot10^{n}-23\over9}\]

Equivalent Patterns: \[[2^*12_{10}]_n=4\cdot[5^*3_{10}]_n\] \[[6^*36_{10}]_n=12\cdot[5^*3_{10}]_n\] \[[4^*24_{10}]_n=8\cdot[5^*3_{10}]_n\] \[[8^*48_{10}]_n=16\cdot[5^*3_{10}]_n\]

See Also: Factorization of 55..553 on stdkmd.net

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