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

def gcd(a,b):
	while b:
		a,b = b,a % b
	return a
	
now = T[0]
for i in range(1,a):
	now = gcd(now,T[i])
import sys
for s in S:
	if s % now != 0:
		print('No')
		exit()
print('Yes')