Find the square root of the following numbers by prime factorization method:
$1.96$

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Solution

$1.96 = 196 / 100$
By squaring we get
$\sqrt{\frac{196}{100}} = \frac{\sqrt{196}}{\sqrt{100}}$
We know that
So we get
$= (2 \times 7) / (2 \times 5)$
$= 14 / 10$
$= 1.4$

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