Question

How many digits are there in the square root of 758641?

• A. 2
• B. 3
• C. 4
• D. 5

Answer 1

The correct option is B

3

$\sqrt{758641}=871$. 41 will form one group, 86 will form the next group and 75 will form the last group. As a total of 3 groups are formed, the square root will consist of 3 digits.
Alternatively, since n = 6, using $\frac{n}{2}$ we get that the number of digits in the square root will be 3.