Introduction

This task is extremely similar to the rsa-256 task, but with a multiple values of N, e, and c in a file vals.txt.

Explanatory notes
(N, e) is the public key
c is the ciphertext

Solving

We can solve this in the same way as the previous task, but we’ll do it three times.

Then just combine the results:

utflag{oh_no_it_didnt_work_</3_i_guess_i_can_just_use_standard_libraries_in_the_future}