Evaluate
2\sqrt{19937}\approx 282.396883835
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2\sqrt{19937}
Factor 79748=2^{2}\times 19937. Rewrite the square root of the product \sqrt{2^{2}\times 19937} as the product of square roots \sqrt{2^{2}}\sqrt{19937}. Take the square root of 2^{2}.
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