# 1. Introduction

In Ruby, as in most programming languages, you may sometimes need to convert numbers to their binary representation. Whether it's for low-level operations, optimizing algorithms, or simply for educational purposes, understanding how to perform this conversion is a fundamental skill. This blog post will guide you through converting an integer to a binary format in Ruby.

Binary is a numeral system that uses two distinct symbols, typically '0' and '1'. In computing, binary numbers are used because of their direct correlation with digital electronics and computing logic. When we convert a number to binary in Ruby, we are translating it into a string of 0s and 1s that represent the same value in base 2.

# 2. Program Steps

1. Define the number to be converted to binary.

2. Use Ruby's built-in method to convert the number to its binary representation.

3. (Optional) Format the output if specific formatting is required.

# 3. Code Program

```
# Step 1: Define the number to be converted to binary
number = 25
# Step 2: Use Ruby's built-in method to convert the number to its binary representation
binary_string = number.to_s(2)
# binary_string now contains the binary representation of the number
```

### Output:

"11001"

### Explanation:

1. *number* is the integer that we want to convert to binary.

2. *number.to_s(2)* is the method used to convert the number to a string in binary format. The argument *2* specifies that the base of the conversion is binary (base 2).

3. *binary_string* holds the resulting binary string which represents the original number in binary format.