LCM of two numbers using functions
Write a C++ program to find LCM of two numbers using functions. Here’s simple program to find LCM of two numbers using functions in C++ Programming Language.
A common multiple is a number that is a multiple of two or more numbers. The common multiples of 3 and 4 are 0, 12, 24, ….
The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.
Here is source code of the C++ program to find LCM 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 find LCM of two numbers using functions */ #include<iostream> using namespace std; void lcm(int,int); int main() { int a,b; cout<<"Enter 1st number :: "; cin>>a; cout<<"\nEnter 2nd number :: "; cin>>b; lcm(a,b); return 0; } //function to calculate l.c.m void lcm(int a,int b) { int m,n; m=a; n=b; while(m!=n) { if(m < n) { m=m+a; } else { n=n+b; } } cout<<"\nL.C.M of [ "<<a<<" ] and [ "<<b<<" ] is :: "<<m<<"\n"; }
Output : :
/* C++ program to find LCM of two numbers using functions */ Enter 1st number :: 2 Enter 2nd number :: 15 L.C.M of [ 2 ] and [ 15 ] is :: 30 Process returned 0
Above is the source code for C++ program to find LCM 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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#include <iostream>
using namespace std;
int LCM(int a, int b){
int a1, m, i=2;
while(m!=0){
a1=a*i;
m=a1%b;
i++;
}
return a1;
}
int main(){
int a, b;
cout << “Enter number 1: “; //El usuario ingresa una cifra
cin >> a;
cout << “Enter number 2: “; // El usuario ingresa otra cifra
cin >> b;
cout << LCM(a,b);
}
#include <bits/stdc++.h>
using namespace std;
int lcm(int a,int b)
{
int ans,max;
max=(a>b)?a:b;
for(int i=max;i<=a*b;i+=max)
{
if((i%a==0)&&(i%b==0))
{
ans=i;
break;
}
}
return ans;
}
int main()
{
int a,b;
cout<<“Enter first number:”;
cin>>a;
cout<<“Enter second number:”;
cin>>b;
cout<<lcm(a,b);
cout<<endl;
return 0;
}