$$\frac { \sqrt { 1.96 } + \sqrt { 2.25 } + \sqrt { 2.89 } } { \sqrt { 0.002116 } } =$$
$100$
$$\frac{1.4+\sqrt{2.25}+\sqrt{2.89}}{\sqrt{0.002116}}$$
$$\frac{1.4+1.5+\sqrt{2.89}}{\sqrt{0.002116}}$$
$$\frac{2.9+\sqrt{2.89}}{\sqrt{0.002116}}$$
$$\frac{2.9+1.7}{\sqrt{0.002116}}$$
$$\frac{4.6}{\sqrt{0.002116}}$$
$$\frac{4.6}{0.046}$$
$$\frac{4600}{46}$$
$$100$$
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$2^{2}\times 5^{2}$
