# How to take out square roots

2
by Inzi

2014-08-28T12:43:52+05:30

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I explain it with an example:
Find the square root of 441 in prime factorisation method:

Step I: write the prime factorisation of 441
441= 3×3×7×7
Step II: From each pair of equal factors occuring in the prime factorisation, take one of the factors and write the product of these factors. The product so obtained is the square root of the given number.
Thus, √441=√(3×3)×(7×7).
Comment has been deleted
good explanation
Ok. But what if we have for example √24 or √2? Or other examples different from the perfect square like 441?
2014-08-28T15:46:16+05:30
Suppose we multiply 2 same numbers such as 2*2 the answer is 4.so when the question is asked what is the square root or 4 the answer is 2