1 #include<cstdio> 2 #define ll long long 3 using namespace std; 4 long long int a,b; 5 long long int f(long long int a,long long int b) 6 { 7     return (a%b==0)?b:f(b,a%b); 8 } 9 int main()10 {11     scanf("%lld%lld",&a,&b);12     ll int gcd=f(a,b);13     ll int ans=(a*b)/gcd;14     printf("%lld",ans);15     return 0;16 }