Evaluate
27\sqrt{6}\approx 66.136223055
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3\sqrt{486}
Multiply 27 and 18 to get 486.
3\times 9\sqrt{6}
Factor 486=9^{2}\times 6. Rewrite the square root of the product \sqrt{9^{2}\times 6} as the product of square roots \sqrt{9^{2}}\sqrt{6}. Take the square root of 9^{2}.
27\sqrt{6}
Multiply 3 and 9 to get 27.
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