This Article consist of most important ” Problems on HCF and LCM ” topic that are mostly asked in all competitive exams. We collected these questions from the students who appeared in exams. Now try to solve these questions.

## Problems on HCF and LCM

**Question : 1** L.C.M of 22, 54, 108, 135 and 198 is :

A. 330

B. 1980

C. 5940

D. 11880

**Show Answer**

**Correct Answer : ** **C**

**Explanation : **

L.C.M is 5940.

**Question : 2 ** Find the H.C.F of 42, 63 and 140:

A. 14

B. 9

C. 21

D. 7

**Show Answer**

**Correct Answer : ** **D**

**Explanation : **

H.C.F of 42 and 63 is 21

H.C.F of 21 and 140 is 7

H.C.F of 42, 63 and 140