List of top Mathematics Questions on LCM and HCF asked in CBSE Class X

Assertion (A) : H.C.F. ($36\text{ m}^2, 18\text{ m}$) = $18\text{ m}$, where m is a prime number.
Reason (R) : H.C.F. of two numbers is always less than or equal to the smaller number.

Assertion (A) : H.C.F. ($36\text{ m}^2, 18\text{ m}$) = $18\text{ m}$, where m is a prime number.
Reason (R) : H.C.F. of two numbers is always less than or equal to the smaller number.

If HCF of 66 and 99 is expressible in the form of \(55m - 132\), then the value of m is :

The HCF of 960 and 432 is :

Find the H.C.F. and L.C.M. of 1530 and 2040.

Using prime factorisation, find the HCF of 144, 180 and 192.

Using prime factorisation, find the HCF of 180, 140 and 210.

Three friends plan to go for a morning walk. They step off together and their steps measures 48 cm, 52 cm and 56 cm respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps ten times?