Question

find the smallest number by which 2400is to be mutliplied to get perfedt square and also the square roots of the resulting number

Answer 1

2400 =2×2×2×3×10×10


so,it should be multiplied by 3 to make perfect square

Answer 2

2 |2400

       |_________

    2 |1200    

       |_________

    2 | 600

       |_________

    2 | 300

       |_________

    2 | 150

       |_________

    3 |  75

       |_________

    5 |  25

       |_________

    5 |   5

       |_________

       |   1

       |

2400 = 2*2*2*2*2*3*5*5

the smallest number is 2*3 = 6, by which 2400 is to be multiplied to get a perfect square.

= 2400*6 = 14400

Square root of 14400

         120

        ___________ 

     1 |14400

        |1

        |_____

  22  |044

        |  44  

        |______

        |   000

        |______

 Hence, √14400 = 120