\(3^{17}.81^{11}:27^{10}.9^{15}\)
=\(3^{17}.\left(3^4\right)^{11}:\left(3^3\right)^{10}.\left(3^2\right)^{15}\)
=\(3^{17}.3^{44}:3^{30}.3^{30}\)
=\(3^{17+44-30+30}\)
=\(3^{61}\)
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