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AMC 12 2005a Problem 21

  • Paper

How many ordered triples of integers (a,b,c)(a,b,c), with a≥2a \geq 2, b≥1b \geq 1, and c≥0c \geq 0, satisfy both log⁡ab=c2005\log_{a}b = c^{2005} and a+b+c=2005a + b + c = 2005?

(A) 0(B) 1(C) 2(D) 3(E) 4\textbf{(A) } 0 \textbf{(B) } 1 \textbf{(C) } 2 \textbf{(D) } 3 \textbf{(E) } 4

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

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C

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