Evaluate
36\sqrt{473}\approx 782.948274154
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12\times 3\sqrt{473}
Factor 4257=3^{2}\times 473. Rewrite the square root of the product \sqrt{3^{2}\times 473} as the product of square roots \sqrt{3^{2}}\sqrt{473}. Take the square root of 3^{2}.
36\sqrt{473}
Multiply 12 and 3 to get 36.
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