def numberToList(number): output = [] for num in str(number): output.append(num) return output def is_prime(number): print number test = ''.join(number) return is_prime_check(int(test)) def is_prime_check(n): print n for i in range(3, n): if n % i == 0: return False return True number = 73939 number_list = numberToList(number) is_trunctable = True for i in xrange(1, len(number_list)+1): print number_list[0:i] is_trunctable = is_trunctable and is_prime(number_list[0:i]) print is_trunctable
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