. Is 243 a perfect cube If not
find the smallest number by which 243 must be multiplied to get a perfect cube.
Given a number 243, it need to be checked that the number is a perfect cube or not.
To check the number should be written as the product of factors.
The number is not a perfect cube as there is not triplet formed of the second group.
To form triplet we need to multiply the given number by 3.
So, the smallest number by which 243 must be multiplied is 3.
The smallest number by which 243 should be multiplied to form a perfect cube is 3.