{"name":"gist: 834969","desc":"Prolog : Project Euler 20-29","actor":"Koitaro","url":"https://gist.github.com/834969","snippet":"problem20(Answer) :- factorial(100,N), i2d(N,L), sumlist(L,Answer).\n\nfactorial(1,1).","actor_gravatar":"f980acc10ac75581e3e44d2e1a485657","action":"update"}