The cake is not a lie!

def answer(s):    
    x = []    
    res =1    
    s1 = s.lower().replace(" ","")    
    s1 = "".join([i for i in s1 if not i.isdigit()])    
    for i in range(len(s1),1,-1):        
        x = [s1[j:j+i] for j in range(0,len(s1),i)]
        if len(set(x)) == 1:
            res1 = len(s1)//i
            print(res1)
            if res < res1:
                res = res1
    return res


s = "sdfsfgsdfsfgsdfsfgsdfsfgsdfsfg"    
print(answer(s))