Evaluate
86780\sqrt{39}\approx 541940.926301013
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21695\times 4\sqrt{39}
Factor 624=4^{2}\times 39. Rewrite the square root of the product \sqrt{4^{2}\times 39} as the product of square roots \sqrt{4^{2}}\sqrt{39}. Take the square root of 4^{2}.
86780\sqrt{39}
Multiply 21695 and 4 to get 86780.
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