最小公倍数hdu1108

#include <iostream>
#include <cmath>
#include <cstdio>
using namespace std;
int gcd(int a,int b)
{
    return b==0?a:gcd(b,a%b);
}
int main()
{
    int b,a;
    while(~scanf("%d%d",&a,&b))
        cout<<a*b/gcd(a,b)<<endl;
    return 0;
}