Question

the least number by which 648 is 2 divided to make a perfect cube
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Answer 1

648 = 2 × 2 × 2 × 3 × 3 × 3 × 3

In the prime factors, only 2 and 3 are present. 2 form a triplet (there are three 2s), while there are four 3s.To be a perfect cube, all prime factors should be in multiples of 3. Therefore, to make 648 a perfect cube, it has to be multiplied by 3 × 3 = 9 (so that there will be six 3s in total).

P.S. You can also multiply by \frac{1}{3}

3

1

, which is smaller or by \frac{1}{648}

648

1

, which is even smaller, but the officially accepted answers are integers, unless they specify otherwise.

Answer 2

Answer:

Hope this will help U

Step-by-step explanation:

The answer is 4