What is the smallest number by which 5400 may be multiplied so that the product is a perfect cube and find the cube root of the product.
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What is the smallest number by which 5400 may be multiplied so that the product is a perfect cube and find the cube root of the product.
by factorizing 5400, we get
2×2×2×3×3×3×5×5
logic is, to become a cube, all number should be in pair in three”s
here 2 is in pair, 3 is in pair, 5 can be in pair if multiplied by one more 5.
after multiplying 5, it becomes,
2×2×2×3×3×3×5×5×5
hence it is the cube of 2×3×5= 30
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The answer is 5.
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