be
3. What is the smallest number that should
be multiplied to each of the following
numbers to get a perfect cube? any one is right
a) 432
b) 37044 c) 36864
Answers
Answered by
1
Answer:
1.
4
2.
2
3.
3
Step-by-step explanation:
note - to form cubes , you need one number multiplied by itself thrice.
1.
factorize 432
2*2*2*2*3*3*3
Now , for the cube , you have to multiply the number by four(i.e.2^2) to make the number 2^6 , which is a cube.
2.
prime factorize the number
you will get 2*2*3*3*3*7*7*7
you see one 2 is remaining to make a group of 3 numbers. that is the ans.
3.
prime factorize the number.
you will get 2*2*2*2*2*2*2*2*2*2*2*2*3*3
now to make groups of 3 , we find one 3 is needed
that is the answer.
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