diff --git a/Elemental algorithms/gcd.cpp b/Elemental algorithms/gcd.cpp
new file mode 100644
index 0000000..a054635
--- /dev/null
+++ b/Elemental algorithms/gcd.cpp	
@@ -0,0 +1,21 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int gcd(int a, int b){
+	if (b==0)
+	{
+		return a;
+	}
+	else{
+		int c = a%b;
+		return gcd(b,c);
+	}
+}
+
+int main()
+{
+	int a=12,b=6;
+	std::cout << gcd(a,b) << endl;
+	return 0;
+}