Evaluate
105\sqrt{3}\approx 181.865334795
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3\times 5\sqrt{7}\sqrt{7}\sqrt{3}
Factor 21=7\times 3. Rewrite the square root of the product \sqrt{7\times 3} as the product of square roots \sqrt{7}\sqrt{3}.
3\times 5\times 7\sqrt{3}
Multiply \sqrt{7} and \sqrt{7} to get 7.
15\times 7\sqrt{3}
Multiply 3 and 5 to get 15.
105\sqrt{3}
Multiply 15 and 7 to get 105.
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