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प्रश्न
Find the least number by which 1323 must be multiplied so that the product is a perfect cube.
उत्तर
The prime factor of 1323 are =3 x 3 x 3 x 7 x 7
= (3 x 3 x 3) x 7 x 7
Clearly, 1323 must be multiplied by 7.
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