Do the Prime Factorization of the denominator

Try to recall how many methods have you studied till now

Add the given two numbers and then find the prime factors of the result.

Try to figure out the number nearest to 72 which is the perfect square and perform prime factorization.

Try to recall the definition of Prime Factorization

Look at the powers carefully

First divide 2072 with 259, then work out the prime factors of the result.

Which method looks like a branch of a tree !

Divide the number with 7.

Prime factorization is a process of factoring a number in terms of prime numbers