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C++ Program to Calculate HCF of Two Numbers using Functions

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robaa
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2022-11-26
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Write a C++ Program to Calculate HCF of Two Numbers using Functions . Here’s simple C++ Program to Calculate HCF of Two Numbers using Functions in C++ Programming Language.

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robaa
2022-11-26
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HIGHEST COMMON FACTOR (H.C.F)

  • The HCF of two (or more) numbers is the largest number that divides evenly into both numbers.
  • In other words the H.C.F is the largest of all the common factors.
  • The common factors or of 12 and 18 are 1, 2, 3 and 6.
  • The largest common factor is 6, so this is the H.C.F. of 12 and 18.
  • It is very easy to find a H.C.F. of small numbers, like 6 and 9 (it is 3) or 8 and 4 (it is 4).
  • The best way is to keep finding the factors of the smaller number, starting from the largest factor. The first factor of the smaller number that is also a factor of the larger number is a H.C.F.

Here is source code of the C++ Program to Calculate HCF of Two Numbers using Functions. The C++ program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

 
 

SOURCE CODE : :

/*  C++ Program to Calculate HCF of Two Numbers using Functions  */

#include<iostream>
using namespace std;

void gcd(int,int);

int main()
{
    int a,b;

    cout<<"Enter 1st number :: ";
    cin>>a;
    cout<<"\nEnter 2nd number :: ";
    cin>>b;

    gcd(a,b);

  return 0;
}

//function to calculate g.c.d
void gcd(int a,int b)
{
    int m,n;

    m=a;
    n=b;

    while(m!=n)
    {
        if(m>n)
            m=m-n;
        else
            n=n-m;
    }

    cout<<"\nH.C.F of [ "<<a<<" ] and [ "<<b<<" ] is :: "<<m<<"\n";
}

Output : :

/*  C++ Program to Calculate HCF of Two Numbers using Functions  */

Enter 1st number :: 12

Enter 2nd number :: 30

H.C.F of [ 12 ] and [ 30 ] is :: 6

Process returned 0

Above is the source code for C++ Program to Calculate HCF of Two Numbers using Functions which is successfully compiled and run on Windows System.The Output of the program is shown above .

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