Merge pull request #93 from linus-xuzixuan/patch-1

Edits #include directives

Author: Christian Bender

Math/Prime_Factorization/primefactorization.cpp

@@ -1,4 +1,5 @@
-#include <bits/stdc++.h>
+#include <iostream>
+#include <vector>
 #include <algorithm>
 using namespace std;