Which country added the most gold to its reserves in

The product of two numbers is 8100 and their GCD is 45. What is the LCM?

Find the HCF of 3341 and 3328.

Find the smallest number that leaves 7 as remainder when divided by both 18 and 45.

Find the difference between sum of digits of LCM and HCF of 16, 40 and 64.

Find the HCF and LCM of 18 and 30.

Two numbers are in the ratio 3:5. The product of their H.C.F. and L.C.M. is 3375. The sum of the numbers is:

What is the HCF of 4/5, 6/8, 8/25 ?

LCM of two numbers is 64 times of their HCF. Sum of the HCF and LCM is 975. If the first number is 960. Find the other number?

If total number of factors of 3,150 is 'x', then find the value of (x - 6) (x + 3).