def factorization(n):  # 素因数分解 [値, かけられた数]
    arr = []
    temp = n
    for i in range(2, int(-(-(n**0.5) // 1)) + 1):
        if temp % i == 0:
            cnt = 0
            while temp % i == 0:
                cnt += 1
                temp //= i
            arr.append([i, cnt])
    if temp != 1:
        arr.append([temp, 1])
    if arr == []:
        arr.append([n, 1])
    return arr


N = int(input())
if len(factorization(N)) <= 2:
    print("Yes")
else:
    print("No")