Find the least multiple of 23, which when divided by 18, 21 and 24 leaves the remainder 7, 10 and 13 respectively.

The HCF and LCM of two numbers are 12 and 336 respectively. If one of the number is 84, the other is

The greatest common factor of two co-prime numbers will be

If the LCM of two numbers is 288 and their ratio is 4 : 9, then HCF of the numbers is : 

By what least number should 21600 be multiplied to make it a perfect square?

The sum of two and the product of 23 is 120. The sum of the areas will be:

What will be the greatest common factor of 96, 528, 2160, 3520?

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