Question

how to find square root of a big number?

Answer 1

HELLO DEAR,



IF YOU WANT TO CALCULATE A SQUARE root OF A LARGE NUMBER, IT IS OFTEN HELPFUl TO REPRESENT THIS LARGE NUMBER AS A PRODUCT OF SMALLER NUMBERS, E.G.



$\sqrt{676}$
NOW WE KNOW THAT:-
$676= 4 \times 167 = \\ = > {2}^{2} \times {13}^{2} \\ = > \sqrt{676} = \sqrt{ {2}^{2} } \times \sqrt{ {13 }^{2} } = 2 \times 13 = 26$
I HOPE ITS HELP YOU DEAR,
THANKS

Answer 2

make it's factors and pair them in two and take out from the root and multiply
eg: 64 = 2*2*2*2*2*2
after pairing , it becomes : 2*2*2
and so root 64 = 2*2*2 = 8