Please, do not write just a link to original writeup here.

[Original writeup](https://github.com/mzfr/picoCTF-2018-Writeups/tree/master/Cryptography/Super%20Safe%20RSA)

Original writeup (https://github.com/mzfr/picoCTF-2018-Writeups/tree/master/Cryptography/Super%20Safe%20RSA).