If the product of two numbers is 4941 and their LCM is 81, then their HCF is:

HCF and LCM of two numbers are 7 and 140 respectively. If the numbers are between 20 and 45, the sum of the numbers is: 

The least number, which when divided by 4, 5 and 6 leaves remainder 1, 2 and 3 respectively is:

Two numbers are in the ratio 3: 4 if their LCM  is 240 then smaller number will be

What is the HCF of 16, 72 and 28 ?

What is the LCM (least common multiple) of 57 and   93?

Find the HCF of 3341 and 3328.

The least multiple of 7, which leaves the remainder 4, when divided by any of 6, 9, 15 and 18, is