What is the greatest common factor of 2³ × 7² and 2⁵ × 3¹?

Find the LCM and HCF of 27 and 81.

The LCM of two numbers is 48. If those numbers are in the ratio 2 : 3 then what will be their sum?

There are some boys and girls in a room. The square of the number of girls is 28 less than the square of the number of boys. If two more girls join then the number of boys and girls becomes equal, then what is the total number of boys and girls in the room?

The HCF of two numbers is 24. If sum of the numbers is 480, how many such pairs of numbers are possible?

The HCF of two numbers 12906 and 14818 is 478. Their LCM is

The LCM of two numbers is 1920 and their HCF is 16. If one of the numbers is 128, find the other number.

The L.C.M. of two numbers is 1820 and their H.C.F. is 26. If one number is 130 then the other number is: