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Viktor [21]
3 years ago
12

Find the smallest positive integer k such that 360k is a cube number.

Mathematics
2 answers:
MAXImum [283]3 years ago
8 0

Answer: k = 75

<u>Step-by-step explanation:</u>

                360

                  ∧

             36   10

              ∧     ∧

           6  6   2  5

          ∧    ∧

        2 3  2 3

Prime factorization of 360 is: 2³ · 3² · 5

Since we want a perfect cube, every number must be to the power of 3.

That means we need  a 3 and 2 more 5s  to make a cube

k = 3 × 5 × 5

  = 75

Luden [163]3 years ago
5 0

Answer:

k = 75

Step-by-step explanation:

Factorize 360

360 = 36 * 10

      = 2 * 2 * 3 * 3 * 2 * 5

As 360k is cube number, k = 3 * 5 * 5

k = 75

360k = 360 * 75 = 27000 is a perfect cube

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