diff --git a/factors.py b/factors.py
new file mode 100644
index 0000000..2e8efee
--- /dev/null
+++ b/factors.py
@@ -0,0 +1,84 @@
+class Factor:
+	simple_one = []
+	simple_two = []
+	compound_one = []
+	compound_two = []
+	complex_one = []
+	complex_two = []
+	complex_three = []
+	complex_four = []
+	
+	def __init__(self, variable_name, factors, factor_type):
+		self.variable_name = varianle_name
+		self.factors = factors
+		self.factor_type = factor_type
+		
+	def calculate_factors(self, factor, base_list, include_compound = False, include_complex = False):
+		clear_factors_lists(self)
+	
+		for item in base_list:
+			simple_one.append(factor / item)
+			simple_two.append(factor * item)			
+		
+		if include_compound:
+			for item in base_list:
+				compound_one.append(((1 + factor) ** (1 / item)) - 1)
+				compound_two.append(((1 + factor) ** item) - 1)
+				
+		if include_complex:
+			for item in base_list:
+				complex_one.append(item * (((1 + factor) ** (1 / item)) - 1))
+				complex_two.append(1 / item * (((1 + factor) ** (1 / item)) - 1))
+				complex_three.append(item * (((1 + factor) ** item) - 1 ))
+				complex_four.append(1 / item * (((1 + factor) ** item) - 1))
+				
+	def print_factors(self, include_simple = True, include_compound = True, include_complex = True):
+		print("Factors for %s." %(self.variable_name))
+		
+		if include_simple and self.simple_one:
+			print("Simple Factors:")
+			print(self.simple_one)
+			print(self.simple_two)
+			print()
+		
+		if include_compound and self.compound_one:
+			print("Compound Factors:")
+			print(self.compound_one)
+			print(self.compound_two)
+			print()
+			
+		if include_complex and self.complex_one:
+			print("Complex Factors:")
+			print(self.complex_one)
+			print(self.complex_two)
+			print(self.complex_three)
+			print(self.complex_four)
+			print()
+			
+				
+	def clear_factors_lists(self):
+		self.simple_one = []
+		self.simple_two = []
+		self.compound_one = []
+		self.compound_two = []
+		self.complex_one = []
+		self.complex_two = []
+		self.complex_three = []
+		self.complex_four = []
+	
+class FactorTypes:
+	simple = 0
+	compound = 1
+	complex = 2
+	
+	FACTOR_TYPES = {
+		0 : "Simple",
+		1 : "Compound",
+		2 : "Complex"
+	}
+	
+	@staticmethod
+	def get_factor_type_name(factor_type):
+		if not factor_type in FACTOR_TYPES:
+			raise ValueError("The factor types is invalid.", "factor_type")
+		return FACTOR_TYPES[factor_type]
diff --git a/main.py b/main.py
index 3b78c12..921da61 100755
--- a/main.py
+++ b/main.py
@@ -8,5 +8,5 @@ results = calc_engine.calculate_results(tokens)
 print(results)
 
 #for t in tokens:
-#	print("%s (%s) " %(t.value, token.TokenType.get_operator_name(t.type)), end = "")
+#	print("%s (%s) " %(t.value, token.TokenType.get_token_type_name(t.type)), end = "")
 #print()