An irrational number between 5 and 7

By definition we have to:

In mathematics, an irrational number is a number that can not be expressed as a fraction m / n, where m and n are integers and n is different from zero.

For example, the number π is an irrational number.

We must find an irrational number between 5 and 7.

We then have the following number:

An irrational number between 5 and 7 is:

your answer is a

step-by-step explanation:

4*4*4*4=256