def getTotalX(a, b):
    # Write your code here
    
    ans = 0
    
    max_num = max(a)
    min_num = min(b)
    
    for i in range(max_num, min_num + 1):
        
        count1 = 0
        count2 = 0
        
        for j in a:
            if i % j == 0:
                count1 += 1
                
        for k in b:
            if k % i == 0:
                count2 += 1
                
        if (count1 == len(a)) and (count2 == len(b)):
            ans += 1
            
    return ans