Answer:
225
Explanation:
3240k = 2×2×2×3×3×3×3×5×k
Every factor should be in groups of 3
(3×5)² = k
k = 225
Prime factorize 3240
3240 = 2*2*2*3*3*3*3*5
To be a perfect cube we have to multiply it by 5*5*3*3 = 25*9=225
3.4m questions
4.4m answers