Question

find the smallest number by which 1620 should be divided to get a perfect square. also find the square root of the new number​

Answer 1

Step-by-step explanation:

1620 = 2×2×3×3×3×5

here ,prime factor 5 has no pair

therfore , 1620 must be divided by 5 to make a perfect square .

therefore, 1620÷5=324

and square root of 324= 2×3×3 =18

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Answer 2

Answer:

Square root of new no=18

Step-by-step explanation:

First of all find the prime factorisation of 1620.Then check the no. which does not have a pair.The no. that does not have a pair should be divided by 1620 ie.1620÷5=324

So square root of 324 is 18..