[Tutor] endless loop

[prasad rao]

hi
  I am trying problem 6 in projecteuler.org.
What is the smallest positive number that is evenly divisible by all
of the numbers from 1 to 20?


def rr(z,m=1):
          q=lambda n:m%n==0
          s=lambda False : 0
          a=filter(s,map(q,range(1,z)))
          if not a:
              m+=1
              rr(z,m)
          else:return m

This code is going into endless loop.

   rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
  File "<pyshell#1>", line 7, in rr
    rr(z,m)
I tried dime a dozen  permutations oF the code.
Can some one show me  why it is going into Endless loop?

Thank you
Prasad