n,k=map(int,input().split())
l=[i for i in range(n+1)]
for i in range(2,n+1):
  if l[i]==i:
    for j in range(1,n//i+1):
      if i*j<=n:
        l[i*j]=i
ans=0
for i in range(2,n+1):
  s=set()
  x=i
  while x!=1:
    s.add(l[x])
    x//=l[x]
  if len(s)>=k:
    ans+=1
print(ans)