214427223621839331
√144=√(2×2)×(2×2)×(3×3)
⇒√144=2×2×3
⇒√144=12 ---(1)
34413147749771
⇒√441=√3×3)×(7×7)
⇒√441=3×7
⇒√441=21 ---(2)
Let evaluate, √144441
√144441
=√144√441
=1221
=47
∴√144441=47
Find the square roots of the following numbers by Prime-factorization method.
(i) 441
(ii) 784
(iii) 4096