Merge remote-tracking branch 'upstream/master'

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diff --git a/challenge-133/abigail/python/ch-2.py b/challenge-133/abigail/python/ch-2.py
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+++ b/challenge-133/abigail/python/ch-2.py
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+#!/opt/local/bin/python
+
+#
+# See ../README.md
+#
+
+#
+# Run as: python ch-2.py < input-file
+#
+
+def digit_sum (numbers):
+    sum = 0
+    for num in numbers:
+        while num > 0:
+            sum = sum + num % 10
+            num = num // 10
+    return (sum)
+
+small_primes = (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31)
+
+def factorize (num):
+    out = []
+    for prime in small_primes:
+        while num % prime == 0:
+            out . append (prime)
+            num = num / prime
+    if num > 1:
+        out . append (num)
+    return (out)
+
+
+number = 1
+count  = 0
+  
+while count < 10:
+    factors = factorize (number)
+    if len (factors) > 1 and digit_sum ([number]) == digit_sum (factors):
+        print (number)
+        count = count + 1
+    number = number + 1