Question

find the smallest number by which 128625 must be multiplied to obtain a perfect cube

Answer 1

128625=5*5*5*3*7*7*7

the number 3, should be multiplied twice so that it can form a perfect cube

the smallest number by which 128625 should be multiplied is

3*3=9

Answer 2

3 is your answer. the smallest number by which 128625 must be multiplied to obtain a perfect cube is 3