The product of two co-prime numbers is $117$. Their $LCM$ should be:

Three numbers which are co-prime to each other 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 ratio of two numbers is $3:4$ and their $HCF$ is $4$. Their $LCM$ is

What is the greatest number which divides $852, 1065$ and $1491$ exactly?

Three different containers contain different quantities of a mixture of milk and water,measuring $403 \ kg$,$434 \ kg$,and $465 \ kg$. What is the largest measure that can measure all these quantities exactly? (in $kg$)

Find the greatest number which exactly divides $200$ and $320$.