Evaluate
2000\sqrt{1610}\approx 80249.610590956
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2000\sqrt{1610}
Factor 6440000000=2000^{2}\times 1610. Rewrite the square root of the product \sqrt{2000^{2}\times 1610} as the product of square roots \sqrt{2000^{2}}\sqrt{1610}. Take the square root of 2000^{2}.
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