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AMC 12 2025b Problem 9

  • Paper

What is the tens digit of 6666^{6^6}?

\textbf{(A)}~1 \textbf{(B)}~3 \textbf{(C)}~5 \textbf{(D)}~7 \textbf{(E)}~9

Dataset text AMC 12 2000 to 2025. Quoted with source.

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C

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Locator amc12/2025b/p9 · Tag AYK5GN6WX9 · Edit this page on GitHub · Keys: j next, k previous