Write the prime factorization of the following numbers and hence find their square roots.
(i) 7744
(ii) 9604
(iii) 5929
(iv) 7056
(i) The prime factorisation of 7744:
$7744=2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 11 \times 11$
Grouping them into pairs of equal factors, we get:
$7744=(2 \times 2) \times(2 \times 2) \times(2 \times 2) \times(11 \times 11)$
Taking one factor from each pair, we get :
$\sqrt{7744}=2 \times 2 \times 2 \times 2 \times 11=88$
(ii) The prime factorisation of 9604:
$9604=2 \times 2 \times 7 \times 7 \times 7 \times 7$
Grouping them into pairs of equal factors, we get:
$9604=(2 \times 2) \times(7 \times 7) \times(7 \times 7)$
Taking one factor from each pair, we get:
$\sqrt{9604}=2 \times 7 \times 7=98$
(iii) The prime factorisation of 5929:
$5929=7 \times 7 \times 11 \times 11$
Grouping them into pairs of equal factors, we get:
$5929=(7 \times 7) \times(11 \times 11)$
Taking one factor from each pair, we get:
$\sqrt{5929}=7 \times 11=77$
(iv) The prime factorisation of 7056:
$7056=2 \times 2 \times 2 \times 2 \times 3 \times 3 \times 7 \times 7$
Grouping them into pairs of equal factors, we get:
$7056=(2 \times 2) \times(2 \times 2) \times(3 \times 3) \times(7 \times 7)$
Taking one factor from each pair, we get:
$\sqrt{7056}=2 \times 2 \times 3 \times 7=84$