Answer:
5
Explanation:
3125 is not a perfect cube.
The cubes around it are 14^3=2744 and 15^3=3375.
It seems like the only way to find the smallest number to multiply 3125 to make it a perfect cube is to guess and check.
3125*2=6250 cube root is 18.4
3125*3=9375 cube root is 21.08
3125*4=12500 cube root is 23.2
3125*5=15625 cube root is 25, which makes it a perfect cube.
You have to multiply by 5 to make 3125 a perfect cube.