diff --git a/1_sum.py b/1_sum.py
new file mode 100644
index 0000000..f9847fb
--- /dev/null
+++ b/1_sum.py
@@ -0,0 +1,5 @@
+output=0;
+for i in range(1,500):
+    if (i%5==0) and (i%7!=0):
+        output+=i;
+print output;        
diff --git a/2_area.py b/2_area.py
new file mode 100644
index 0000000..233fc53
--- /dev/null
+++ b/2_area.py
@@ -0,0 +1,8 @@
+l=6;
+b=8;
+h=10;
+l1=l+(l*0.15);
+b1=b+(b*0.15);
+h1=h+(h*0.15);
+area=(l1*b1)+2*(l1*h1)+2*(b1*h1)
+print area;
diff --git a/6_prime b/6_prime
new file mode 100644
index 0000000..b715c14
--- /dev/null
+++ b/6_prime
@@ -0,0 +1,10 @@
+print("Prime numbers between 1 and 99999 are:")
+
+for num in range(1,100000):
+  
+   if num > 1:
+       for i in range(2,num):
+           if (num % i) == 0:
+               break
+       else:
+           print(num)
diff --git a/7_palindrome.py b/7_palindrome.py
new file mode 100644
index 0000000..ea89925
--- /dev/null
+++ b/7_palindrome.py
@@ -0,0 +1,5 @@
+string=raw_input("enter a sring")
+if(string==string[::-1]):
+    print "string is palindrome"
+else:
+    print "string is not palindrome";