diff --git a/prime factors of a given number.py b/prime factors of a given number.py
new file mode 100644
index 00000000..1ccdc9e4
--- /dev/null
+++ b/prime factors of a given number.py	
@@ -0,0 +1,29 @@
+# Python program to print prime factors
+
+import math
+
+
+def primeFactors(n):
+	
+	# Print the number of two\'s that divide n
+	while n % 2 == 0:
+		print (2),
+		n = n / 2
+		
+	# n must be odd at this point
+	# so a skip of 2 ( i = i + 2) can be used
+	for i in range(3,int(math.sqrt(n))+1,2):
+		
+		# while i divides n , print i ad divide n
+		while n % i== 0:
+			print (i),
+			n = n / i
+			
+
+	if n > 2:
+		print (n)
+		
+
+n = 315
+primeFactors(n)
+