A person bought a safe which can be unlocked by entering a 2-digit
secret code. After some time, he forgot the secret code of his safe.
However, he remembers some numbers that could be the secret code.
The secret code is one among the following numbers.
5 17 29 22 11 26 27 35 39 41
Let us give him some clues to find the secret code of his safe.
It is greater than 20
It is not a prime number
It is smaller than 40
It has 13 as one of its factors
It is an odd number.
It has only 4 factors
The secret code is ____________________