def fact(n):
    s = []
    while n % 2 == 0:
        s.append(2)
        n //= 2
    f = 3
    while f * f <= n:
        if n % f == 0:
            s.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        s.append(n)
        
    return s

n = int(input())

ans = set(fact(n))

if len(ans) <= 2:
    print("Yes")
else:
    print("No")