How to find square root using prime factorisation

Answers (1)

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

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