Evaluate
2\sqrt{114}\approx 21.354156504
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\sqrt{456}
Multiply 6 and 76 to get 456.
2\sqrt{114}
Factor 456=2^{2}\times 114. Rewrite the square root of the product \sqrt{2^{2}\times 114} as the product of square roots \sqrt{2^{2}}\sqrt{114}. Take the square root of 2^{2}.
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