Common Factors and Multiples|Prime and Composite Numbers

Factors and multiples of a number

Product of Highest Common Factor and Least Common Multiple of two numbers is 216. If one of the number is 12, then what will be the ratio of these two numbers?

What will be the ratio of Highest common Factor and Least Common Multiple of two numbers 16 and 20?

What will be the ratio of Highest common Factor and Least Common Multiple of two numbers 14 and 18?

The greatest common factor of relatively prime numbers is

The average of all the prime and composite numbers upto 100 is:

The average of all the prime and composite numbers upto 100 is :