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+#!/usr/bin/env python3
+
+# Challenge 082
+#
+# TASK #1 > Common Factors
+# Submitted by: Niels van Dijke
+# You are given 2 positive numbers $M and $N.
+#
+# Write a script to list all common factors of the given numbers.
+#
+# Example 1:
+# Input:
+#     $M = 12
+#     $N = 18
+#
+# Output:
+#     (1, 2, 3, 6)
+#
+# Explanation:
+#     Factors of 12: 1, 2, 3, 4, 6
+#     Factors of 18: 1, 2, 3, 6, 9
+# Example 2:
+# Input:
+#     $M = 18
+#     $N = 23
+#
+# Output:
+#     (1)
+#
+# Explanation:
+#     Factors of 18: 1, 2, 3, 6, 9
+#     Factors of 23: 1
+
+import sys
+
+def get_common_factors(a, b):
+    factors = []
+    i = 1
+    while i <= a or i <= b:
+        if a%i==0 and b%i==0:
+            factors.append(i)
+        i += 1
+    return factors
+
+factors = get_common_factors(int(sys.argv[1]), int(sys.argv[2]))
+print("("+ ", ".join([str(x) for x in factors]) +" )")