Update factors.py

Made the code more efficient.

Author: Ahish9009

factors.py

@@ -1,7 +1,10 @@
+import math
+
 print('The factors of the number you type when prompted will be displayed')
 a = int(input('Type now // '))
-b = a
-while b > 0:
+b = 1
+while b <= math.sqrt(a):
 	if a % b == 0:
-		print(b)
-	b -= 1
+		print("A factor of the number is ", b)
+		print("A factor of the number is ", int(a/b))
+	b += 1