Answer the following scenario in relation to the RSA algorithm

1. Suppose you are given a ciphertext C= 61 by a user whose public key is e=11, n=91. Break the code.
2. Suppose you have a set of encoded message blocks but you dont have the private key. If someone tells you that they know one of the plaintext blocks has a common factor with n (let n=pq and e is the public key). Does this help you in any way? Explain why and why not?