Evaluate
91\sqrt{15}\approx 352.441484505
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7\times 13\sqrt{15}
Factor 2535=13^{2}\times 15. Rewrite the square root of the product \sqrt{13^{2}\times 15} as the product of square roots \sqrt{13^{2}}\sqrt{15}. Take the square root of 13^{2}.
91\sqrt{15}
Multiply 7 and 13 to get 91.
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