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How to find square root using prime factorisation

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The first step is to find the L.C.M. of the given number
Then last and the final step is to form a pair of numbers and count each pair as one and multiply them.
This will be the final answer.
For Ex
1:)Taking  L.C.M. of 121 
 11midunderline121
           11
So we write the factors as 11*11. And we get the pair as overline11*11.
Now we take one factor of the pair ,i.e 11
So we get the square root of 121 as 11

Posted by

Deependra Verma

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