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problems/003_problem.py

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+
+#  Problem 3:
+#
+#  The prime factors of 13195 
+#  are 5, 7, 13 and 29.
+#  
+#  What is the largest prime 
+#  factor of the number 600851475143 ?
+#
+import decorators
+
+def treat_evens(n):
+	mod_is_zero = True
+	dividend = 2
+	while mod_is_zero:
+		num = n/dividend
+		mod_is_zero = 0 == n%dividend
+		dividend *= 2
+	print("{}".format(num))
+	return num
+
+@decorators.function_timer
+def main():
+
+	orig = 600851475143
+	num = treat_evens(orig)
+
+	print("Highest prime of 600851475143 is {}".format(num))
+
+main()