Java Program to Find HCF (GCD) of Two Numbers
Java Program to Find HCF (GCD) of Two Numbers
Welcome to CodeWithBK — your go-to hub for mastering Java programming.
In this video, we will learn how to write a Java program to find the HCF (Highest Common Factor), also known as the GCD (Greatest Common Divisor), of two numbers. This is a fundamental mathematical problem often used in number theory, programming practice, and competitive coding.
Example 1:
Input:
a = 10, b = 25
Output
5
Example 2:
Input:
a = 3, b = 7
Output
1
In this video, you will:
Understand what HCF (GCD) means and why it is important
Learn how to calculate the HCF of two numbers using different approaches
Implement the solution using loops and the Euclidean Algorithm
Practice working with conditional statements, loops, and modular arithmetic
Strengthen your problem-solving skills in mathematical programming with Java
Why learn this program?
The Java program to find HCF (GCD) builds strong foundations in mathematical logic, number theory, and algorithmic problem solving. The Euclidean Algorithm is one of the most efficient and widely used methods to compute GCD, making it an important concept for programming interviews and competitive exams.
If you want to improve your skills in mathematics-based Java problems, loops, and algorithms , this tutorial is perfect for you.
What is the Euclidean method? : https://en.wikipedia.org/wiki/Euclide...
Perfect for:
B.Tech / BCA students
AP Computer Science students learning Java
Beginners who want to practice Java loops and conditional logic
Students learning mathematical programs in Java for exams and assignments
Developers preparing for competitive coding challenges
Anyone preparing for Java interview questions related to number theory
Programming Language: Java
Level: Beginner-friendly
Python program to find the HCF of two integers (in Hindi): • Python program to find the HCF (GCD) of tw...
Related Videos:
Factorial of a Number : • Java Program to Find Factorial Using Loops
Reverse of a Number : • Java Program to Reverse a Number
Timestamps:
00:00 Intro
00:25 Problem description
01:07 Java code using brute force approach to find the HCF of two integers
03:30 Java code using Euclidean method to find the HCF of two integers
06:04 Correctness of the code
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