How to find the rationalising factor of any irrational and rational number ?
Note : Not rationalising denominator but I want ratinalising factor
eg : 3√5
4√5
3√3
3√5
Prime factorization of 125 = 5 × 5 × 5
So, 3√125 = 3√5 × 5 × 5 = 5
Now, 3√5 × 3√25 = 3√5 × 25 = 3√125 = 5
Thus, when 3√5 is multiplied by 3√25, we obtain the rational number 5.
Therefore, the rationalizing factor of 3√5 is 3√25.
You can find the rationalizing factor of 4√5 and 3√3 using above explained answer.