Ronak Sumbaly wrote these notes. I host them in my notes library on akshansh.net.
They are for Number Theory, a third year, second semester course at BITS Pilani, Dubai Campus. The subject covers divisibility, prime numbers, and modular arithmetic: the foundational methods that sit underneath cryptography and discrete mathematics. Ronak’s notes cover that ground clearly.
In 2013, I started putting study notes online from my hostel room as an undergrad. The reason was simple: others should be able to learn from them. At least one person in the world has studied from my notes library every single day since then. That fact still matters to me.
My own Number Theory notes are also on this site. The two sets cover the same course, so you can read them side by side and take what is useful from each.
The PDF is embedded on this page. Read it here, or download it for later.
Learn. Share. Repeat.