def issort_list(list1):
    
    result = all(list1[i] <= list1[i+1] for i in range(len(list1)-1))
    return result
def is_not_prime(n):
    import math
    
    result = False
    for i in range(2,int(math.sqrt(n)) + 1):
        if n % i == 0:
            result = True
    return result