Evaluate
18\sqrt{224689082276495}\approx 269813384.874776721
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9\times 2\sqrt{224689082276495}
Factor 898756329105980=2^{2}\times 224689082276495. Rewrite the square root of the product \sqrt{2^{2}\times 224689082276495} as the product of square roots \sqrt{2^{2}}\sqrt{224689082276495}. Take the square root of 2^{2}.
18\sqrt{224689082276495}
Multiply 9 and 2 to get 18.
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