Product of Two Numbers = HCF x LCM

Q.

The product of two numbers is$2208$ and their $L.C.M.$ is $552.$ What is their$H.C.F?$

Q.

Find the HCF of 96 and 404 by the prime factorisation method. Hence, find their LCM.

Q.

If the product of two numbers is $4032$ and their H.C.F. is $12$ , find their L.C.M.

Q.

The product of two numbers is $200$ and their L.C.M. is $40$. What is the H.C.F. of the two numbers?

Q. For two numbers 96 and 404, the HCF is 4. What is the LCM of the two numbers?

1. 9696

Q. HCF (16, 256) = 16, then the LCM (16, 256) = .

1. 128
2. 16
3. 256

Q.

If one number is $8$, and other number is $12$, LCM of $8$ and $12$ is $24$ and HCF of $8$ and $12$ is $4$, then verify that

$\mathrm{Product}\mathrm{of}\mathrm{two}\mathrm{numbers}=\mathrm{HCF}\times \mathrm{LCM}$

Q.

HCF of two numbers is 1 and LCM is 221. If one of the two numbers is 17, find the other.

1. 17

2. 39

3. 13

4. 200

Q.

Question 1 (b)

Find the HCF of the following numbers:
30, 42

Q. HCF (16, 256) = 16, then the LCM (16, 256) = .

1. 256
2. 128
3. 16

Q.

Question 1 (i)

Find the HCF of the following numbers:
18, 54, 81