I have always been fascinated by number theory but I could never train myself for it. No. 1 reason it's doesn't make the chunk of I'm syllabus so we do not practice much of it and no. 2 whenever I tried to learn it myself I have always failed. I tried to understand the Wilson theorem, Chinese Remainder theorem etc but it just crossed over my head. So I ask my fellow Brilliant members to advice me how should I start up with Number theory. Help would be appreciated.