Question: In a public-key system using RSA, you intercept the ciphertext C = 20 sent to a user whose public key is e = 13, n

In a public-key system using RSA, you intercept the ciphertext C = 20 sent to a user whose public key is e = 13, n = 77 . What is the plaintext M?

dont use fermat's little theorem.

show all calculations

if you dont write your own answer you will get downvotes immediatelly

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