Find the HCF of 3341 and 3328.

Two pipes of length 36 metre and 40 metre are to be cut into equal pieces without leaving any extra length of pipe. Find the number of such pieces if pipes are to be cut of maximum length.

Three numbers are in the ratio of 3:5:10 and their LCM is 630. Find their HCF.

Three numbers which are co-prime to one another are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is: 

The product of two numbers is 2028 and their HCF is 13. The number of such pair is-

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

The LCM of three different numbers is 120. Which of the following cannot be their HCF? 

If the least common multiple(LCM) of two numbers is 231, the Highest common multiple(H.C.F)  of both numbers is 11 and the first number is 77, then the second number is