Question

6. Find the number of digits in the square root of the
following numbers.
(a) 64
(b) 256
(C) 15625
(d) 394384
​

Answer 1

Answer:

64=8 ;256=25 ;15625=125 ;394384=628.

Answer 2

Answer:

(a) 64

64 containing two digits , it is even number, we will have to divide at least prime number that is 2.

64=n=2

:. Number of digits= n\2

2\2

= 1 Answer

(b) 256

256 is even number,we will have to prime factariaction

of 256 then,

256= 2×2×2×2×2×2×2×2

√256= √2×2×2×2×2×2×2×2

√256= 2×2×2×2

√256=16 Answer