def pfact(m):
	pf = {}
	for i in range(2,int(m**0.5)+1):
		while m%i == 0:
			pf[i] = pf.get(i,0) + 1
			m //= i
	if m>1 : pf[m]=1
	return pf

n = int(input())
r = pfact(n)
if len(r) <= 2:
	print("Yes")
else:
	print("No")