18, 54, ? , 1890, 17010,

The H.C.F. of two numbers is 14 and the other two factors of their L.C.M. are 5 and 11. The larger of the two numbers is:

The least number which when divided by 5, 15 and 25 leave a same remainder 2 in each case? 

LCM of two numbers is 10 times their HCF. The product of the numbers is 18000. What will be the maximum possible difference between the numbers?

Find the LCM of 20, 30, 40, 50.

Two numbers are in the ratio 2:7. The product of their H.C.F. and L.C.M. is 5054. The sum of the numbers is:

Let N be the greatest number that will divide 85, 112, 139 leaving the same remainder in each case. Then sum of the digits in N is:

Three numbers are in the ratio 3:7:2 respectively. If the HCF of the numbers is 5, then find the LCM of the numbers.

The smallest number which when divided by 27 and 36 leaves remainder 12 and 21 respectively is:

The HCF of two numbers is 14. Which of the following can never be their LCM?

The product of two numbers is 2880 and their GCD is 24. What is the LCM?