def primeCheck(n):
    prime = []
    s = [0, 0, 2]
    for i in range(3, n + 1, 2):
        s.append(i)
        s.append(0)
    for i in range(3, n + 1, 2):
        if s[i] != 0:
            j = 3
            while i * j <= n:
                s[i * j] = 0
                j += 2
    for m in s:
        if m > 0:
            prime.append(m)

    for m in prime:
        if m % n:
            primeFactor.append(n)

a, b = map(int, input().split())
if a != b:
    primeFactor = []
    primeCheck(a)
    check = False
    for num in primeFactor:
        if num % b == 0:
            check = True
            break
else:
    check = True

if check:
    print('YES')
else:
    print('NO')