Question

If the LCM of three numbers is 9570, then their HCF is______.

(A) 11 (B) 12 (C) 19 (D) 21

Answer 1

Answer:

pata nhi

Step-by-step explanation:

I am sorry ............

Answer 2

Answer:

Let us consider three numbers as 9570, 1 and 1.

Therefore, LCM = 9570,  HCF = 1

Now if we consider three numbers as 9570, 9570 and 9570.

Then, LCM = 9570,   HCF = 9570

But in the above-mentioned question, choices have already been given and we are supposed to eliminate values which can not be HCF.

Upon, prime factorization of 9570, we get solution as

9570 = 2*3*5*11*29

And we know that HCF must always be a factor of LCM.

So from the given choices in the question itself, only 11 can be the HCF.

Hence, 11 is the answer.