Checking Divisibility By 3

Checking if a given number N is divisible by 3. We will discuss the approach, present a step-by-step solution, and provide a code example to solve this problem effectively.


Understanding the Problem

The problem is to determine whether a given number N is divisible by 3. To solve this, we need to check if the remainder of dividing N by 3 is zero. If the remainder is zero, it means N is evenly divisible by 3; otherwise, it is not divisible.


Approach

To check if a number N is divisible by 3, we can follow a simple approach. We will use the modulo operator (%) in Java, which returns the remainder of dividing two numbers. By dividing N by 3 and checking if the remainder is zero, we can determine whether N is divisible by 3 or not.


Step-by-Step Solution

Let's break down the problem into steps:

Step 1: Accept the input value for N.

Step 2: Calculate the remainder by dividing N by 3 using the modulo operator (%).

Step 3: Check if the remainder is zero.

Step 4: If the remainder is zero, print that N is divisible by 3. Otherwise, print that N is not divisible by 3.

Step 5: End the program.


Code Example

Now, let's translate our solution into code:

Conclusion

We explored a simple problem of checking if a given number N is divisible by 3. By utilizing the modulo operator (%) and checking the remainder, we were able to determine the divisibility efficiently. We presented code example that allows us to input the value of N and prints whether it is divisible by 3 or not.

Solving problems is a fundamental aspect of programming, and understanding how to check for divisibility is just one example of problem-solving skills. With practice and exposure to various problem-solving scenarios, you will enhance your programming skills and become a proficient developer.

Keep exploring, learning, and solving problems to elevate your programming journey!

Exercise 

Take an integer A as input. You have to tell whether A is divisible by both 5 and 11 or not.