what is the difference between these two programmes

b=input("Enter number : ")
for n in range(2, b+1):
     for x in range(2, n):
         if n % x == 0:
              break
     else:
          print n

and

b=input("Enter number : ")
for n in range(2, b+1):
     for x in range(2, n):
         if n % x == 0:
              break
         else:
              print n