Add lucky numbers

Zxey · Zxey · commit a50cf030df69 · 2018-10-03T00:08:40.000+02:00
diff --git a/math/lucky_numbers.py b/math/lucky_numbers.py
@@ -0,0 +1,20 @@
+def is_lucky(number):
+    counter = 2
+
+    def is_lucky_inner(number):
+        nonlocal counter
+
+        next_position = number
+
+        if counter > number:      return True
+        if number % counter == 0: return False
+
+        next_position -= next_position // counter
+        counter += 1
+
+        return is_lucky_inner(next_position)
+
+    return is_lucky_inner(number)
+
+for i in range(1, 11):
+    print("number {} {}".format(i, "is lucky" if is_lucky(i) else "is not lucky"))
