In this post, we will solve **Lambda Calculus – Evaluating Expressions #3 HackerRank Solution**. This problem **(Lambda Calculus – Evaluating Expressions #3)** is a part of **HackerRank Functional Programming** series.

**Task**

Under **Church encoding**, what natural number does the expression **λx.λy.x ^{47}y** represent?

The required answer is an integer, which you may enter in the text box. Do not leave any leading or trailing spaces.

**Solution – Lambda Calculus – Evaluating Expressions #3**

47

**Note: **This problem **(Lambda Calculus – Evaluating Expressions #3)** is generated by **HackerRank** but the solution is provided by **CodingBroz**. This tutorial is only for **Educational** and **Learning** purpose.