Question

how to find the square root of 1.21 by prime factorization

Answer 1

121 = 11 × 11

121 = 11²

Now,

$</p><p></p><p>\sqrt{121} = \sqrt[2]{ 11 \times 11 } \\ \\</p><p></p><p>\sqrt{121} = \sqrt[\cancel{2}]{ 11^{\cancel{2}}} </p><p></p><p>\\ \\</p><p></p><p>\sqrt{121} = 11</p><p></p><p>$