from random import randint
from math import gcd
from operator import sub,add,floordiv,mul
import sys
N=int(input())
i=sub(N,N)
t=floordiv(N,N)
u=sub(ord("i"),ord("A"))
s=add(t,t)
if N==t:
  print("No")
  sys.exit()
if N==s:
  print("Yes")
  sys.exit()
while i<u:
  a=randint(s,sub(N,t))
  if gcd(a,N)!=t:
    print("No")
    break
  i+=t
else:
  print("Yes")