Add GCD and LCM utility functions to Python snippets

Author: SteliosGee

public/data/python.json

@@ -187,6 +187,44 @@
         ],
         "tags": ["python", "math", "prime", "check"],
         "author": "dostonnabotov"
+      },
+      {
+        "title": "Find the greatest common divisor (GCD)",
+        "description": "Finds the greatest common divisor of two numbers.",
+        "code": [
+          "def gcd(a, b):",
+          "    while b:",
+          "        a, b = b, a % b",
+          "    return a",
+          "",
+          "# Usage:",
+          "print(gcd(12, 15))  # Output: 3"
+        ],
+        "tags": ["python", "math", "gcd", "utility"],
+        "author": "SteliosGee"
+      },
+      {
+        "title": "Find the least common multiple (LCM)",
+        "description": "Finds the least common multiple of two numbers.",
+        "code": [
+          "def lcm(a, b):",
+          "    if a > b:",
+          "       greater = a",
+          "    else:",
+          "       greater = b",
+          "",
+          "    while True:",
+          "        if greater % a == 0 and greater % b == 0:",
+          "            lcm = greater",
+          "            break",
+          "        greater += 1",
+          "    return lcm",
+          "",
+          "# Usage:",
+          "print(lcm(4, 6))  # Output: 12"
+        ],
+        "tags": ["python", "math", "lcm", "utility"],
+        "author": "SteliosGee"
       }
     ]
   },