pep8 fixes

mathgenerator/funcs/factorialFunc.py

@@ -4,12 +4,12 @@ from .__init__ import *
 def factorialFunc(maxInput=6):
     a = random.randint(0, maxInput)
     n = a
-    
+
     problem = str(a) + "! = "
     b = 1
 
     while a != 1 and n > 0:
-            b *= n
-            n -= 1
+        b *= n
+        n -= 1
     solution = str(b)
     return problem, solution