Evaluate
4\sqrt{39}\approx 24.979991994
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\sqrt{624}
Multiply 78 and 8 to get 624.
4\sqrt{39}
Factor 624=4^{2}\times 39. Rewrite the square root of the product \sqrt{4^{2}\times 39} as the product of square roots \sqrt{4^{2}}\sqrt{39}. Take the square root of 4^{2}.
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