def fact(n):
    _N = n #上限
    ans = []
    i = 2
    while i*i <= _N:
        if n%i == 0:
            cnt = 0
            while n%i == 0:
                cnt += 1
                n //= i
            ans.append([i,cnt]) #[素因数,個数]
        else:
            i += 1
    if n != 1:
        ans.append([n,1])
    return ans

N = int(input())
K = fact(N)
if len(K) <= 2:
    print("Yes")
else:
    print("No")