x=int(input())

L=int(x**(1/2))

FACT=dict()

for i in range(2,L+2):
    while x%i==0:
        FACT[i]=FACT.get(i,0)+1
        x=x//i

if x!=1:
    FACT[x]=FACT.get(x,0)+1

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