c语言计算两个数的最小公倍数

#include<stdio.h>int main() {

   int a, b, max, step, lcm;

   a   = 3;

   b   = 4;

   lcm = 0;

   if(a > b)

      max = step = a;

   else

      max = step = b;

   while(1) {

      if(max%a == 0 && max%b == 0) {

         lcm = max;

         break;   

      }

      max += step;

   }

   printf("LCM is %d", lcm);

   return 0;}

LCM is 12