Question

Is 68600 a perfect cube? If not, find the smallest number by which 68600 must be multiplied to get a perfect cube?

Answer 1

Answer:

Step-by-step explanation:

Solution:

By prime factorisation,

68600=2  

3

×5  

2

×7  

3

 

It is not a perfect cube.

We have to multiply it by 5 , then it equals to 343000

It is a perfect cube.

Therefore, we have to multiply 68600 by 5 to make it a perfect cube

or

LCM(68600)=2*2*2*5*5*7*7*7

No, it is not a perfect cube

after multiplying by 5 this number can be a perfect cube.

Answer 2

Answer:

Step-by-step explanation:

14∛25 is the perfect form.