Question

Find the square root of $4096$ by the prime factorisation method.
[3 marks]
[NCERT - Ex 6.3, Q4 (iv)]
[Finding Square Root]

• A. $32$
• B. $64$
• C. $16$
• D. $128$

Answer 1

The correct option is B $64$

Solution:
$4096=2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2$
[1.5 marks]

So, $\sqrt{4096}=2\times 2\times 2\times 2\times 2\times 2=64$
[1.5 marks]