n = int(input())

prime_set = set()
while n % 2 == 0:
    prime_set.add(2)
    n //= 2
f = 3
while f * f <= n:
    while n % f == 0:
        prime_set.add(f)
        n //= f
    f += 2
if n != 1:
    prime_set.add(n)
if len(prime_set) <= 2:
    print("Yes")
else:
    print("No")