## https://yukicoder.me/problems/no/2944

def calc_gcd(A, B):
    """
    正の整数A, Bの最大公約数を計算する
    """
    a = max(A, B)
    b = min(A, B)
    while a % b > 0:
        c = a % b
        a = b
        b = c
    return b

def main():
    a, b = map(int, input().split())

    T = list(map(int, input().split()))
    S = list(map(int, input().split()))

    gcd_t = T[0]
    for i in range(1, a):
        gcd_t = calc_gcd(gcd_t, T[i])

    for s in S:
        if s % gcd_t != 0:
            print("No")
            return

    print("Yes")







if __name__ == "__main__":
    main()