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

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.

Two numbers are in the ratio 3 : 5 and their HCF is 20. Their LCM is

The least multiple of 13, which on dividing by 4, 5, 6, 7 and 8 leaves remainder 2 in each case is 

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

Find the L.C.M of $$ {6x}{y^{2}z},{8x^{2}{y^{3}z^{2},{12{x^{3}{y^{3}z^{3}}}}}}$$.

The largest 4 - digit number exactly divisible by each of 12, 15, 18 and 27 is : 

The least number, which is a perfect square and is divisible by each of the numbers 16, 20 and 24 is