Evaluate
7\sqrt{3}\approx 12.124355653
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\sqrt{147}
Multiply 21 and 7 to get 147.
7\sqrt{3}
Factor 147=7^{2}\times 3. Rewrite the square root of the product \sqrt{7^{2}\times 3} as the product of square roots \sqrt{7^{2}}\sqrt{3}. Take the square root of 7^{2}.
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