k=0 for n in range(2626696861, 10**15): n1 = n a = [] d = 2 while d*d<=n: while n%d==0: a.append(d) n = n//d d += 1 if n>1: a.append(n) if len(a)==2 and str(a[0]).count('67')==1 and str(a[1]).count('67')==1: print(n1, a[0]) k+=1 if k == 5: break