renamed files and exercise 1.2

Activity_3_python/exercises_3/exercise_3_9_2.py

@@ -0,0 +1,8 @@
+nbr = int(input("Nombre ? "))
+nbr_pre = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199]
+
+while nbr != 0:
+    for i in nbr_pre:
+        if nbr % i == 0:
+            nbr = nbr/i
+            print(i)