C++ Program To Find The LCM Of Two Number Using If/Else Statement

#include <iostream>
using namespace std;
int main() {
   int a=7, b=5, lcm;
   if(a>b)
   lcm = a;
   else
   lcm = b;
   while(1) {
      if( lcm%a==0 && lcm%b==0 ) {
         cout<<"The LCM of "<<a<<" and "<<b<<" is "<<lcm;
         break;
      }
      lcm++;
   }
   return 0;
}