_____________ was India’s top trading partner in

The product of two positive integers is 3630. If their HCF is 11 and their sum is 143, then find the difference between the numbers.

Find the HCF of two numbers if LCM and product of those two numbers are 34 and 680 respectively.

The LCM of two numbers is 40 times its HCF. If the product of the numbers is 1440, find their HCF.

The LCM of two numbers is 63 and their HCF is 7. How many such pairs of numbers are possible?

The least number which when divided by 16, 32 and 48 leave remainder 4, 20 and 36 respectively is? 

If the total ages of A and B is 18 years more than the total age of B and C. C is how many years younger than A?

The HCF and LCM of two consecutive even number is 2 and 112 respectively. Find the sum of reciprocal of these two numbers?

LCM and HCF of the two numbers are 225 and 15 respectively. One of the numbers is 45, then find the second number.

A number is three times another number and their HCF is 8. What is the sum of the squares of the numbers?

Three numbers a, b and c are co-prime to each other such that ab = 221 and bc = 247. Find the value of (a + b + c).