Question

Please answer with solutions​

Answer 1

Answer:

a)I only 1 question Answer

Answer 2

Step-by-step explanation:

Prime factorising 231525, we get,

231525=3×3×3×5×5×7×7×7

=3

3

×5

2

×7

3

.

We know, a perfect cube has multiples of 3 as powers of prime factors.

Here, number of 3's is 3, number of 5's is 2 and number of 7's is 3.

So we need to multiply another 5 to the factorization to make 231525 a perfect cube.

Hence, the smallest number by which 231525 must be multiplied to obtain a perfect cube is 5.

Hence, option A is correct.