def factorization(n):
    pf={}
    for i in range(2,int(n**0.5)+1):
        while n%i==0:
            pf[i]=pf.get(i,0)+1
            n//=i
    if n>1:pf[n]=1
    return pf
N=int(input())
fac = factorization(N)
print("Yes" if len(fac)<=2 else "No")