Practice Questions of LCM and HCF

Calculate the product of LCM and HCF of 4 and 18.

The LCM of two numbers is 4 times their HCF. The sum of LCM and HCF is 125. If one of the number is 100, then the other number is:

The LCM of two numbers is 4 times their HCF. The sum of LCM and HCF is 125. If one of the numbers is 100, then the other number is:

The LCM of two number is 14 times their HCF. The sum of LCM and HCF is 600. If one number is 280, then find the other number.

The LCM of two numbers is 90 times their HCF. The sum of LCM and HCF is 1456. If one of the numbers is 160, then what is the other number?

Using prime factorisation find HCF and LCM of 18,45 and 60 check if HCF x LCM = product of the number