# Good introductory readings to topics related to prime numbers for non-mathematicians

I'm a maths hobbyist who is fascinated by prime numbers. My quest to delve into the interesting parts of the topic is always hindered by my inability to understand the notation and concepts I encounter in published papers or any other mediums. I understand this problem is a result of my unfamiliarity with the areas involving the primes such as Number Theory, Sets, Logic and Reasoning, etc...

What are some graceful readings that one would recommend for me in order to get up to speed in said topics?

• This should probably be made Community Wiki. Would you like me to convert it?
– robjohn
Jan 12, 2013 at 15:25
• @robjohn Sure thing, go for it. Jan 13, 2013 at 2:19

The Art of Problem Solving (AOPS.org) has a website with abundant links to number theory resources, (guides, exercises, reference recommendations) to begin studying number theory, at varying levels of difficulty - from very basic, to progressively more difficult. E.g., To start, see AOPS's Introductory Topics in Number Theory:

"The following topics make a good introduction to number theory:"

Primes
Sieve of Eratosthenes
Prime factorization
Composite numbers
Divisibility
Divisors
Common divisors
Greatest common divisors
Counting divisors
Multiples
Common multiples
Least common multiples
Division Theorem (the Division Algorithm)
Base numbers
Diophantine equations
Simon's Favorite Factoring Trick
Modular arithmetic
Linear congruence


(Links available for each topic above.)

Not necessarily directly related to number theory, but more foundational in nature to help prepare you for studying it, see the following

For some background reading in you listed topics: "sets, logic, and reasoning," and to better understand proof-reading/writing (with number theory as examples), you might want to start with

Together, they provide both structural knowledge (the "basics" of "building blocks"), and examples and exercises to get your "mind rolling" and to develop agility in your reasoning.

You can preview each of the books at the links above.

Since you are a hobbyist, I highly recommend "Number Theory Through Inquiry" by Marshall et al. It is a small book that presents elementary number theory in a way that you can explore the theorems yourself at your own pace. You don't need any math background to read and work through it. It may take a bit longer to go through than reading a normal textbook, but I find this style of learning way more enjoyable.

"A Friendly Introduction to Number Theory", by Joseph Silverman

"The Little Book of Big Prime Primes", by Paulo Ribenboim

"The New Book of Prime Number Records", by Paulo Ribenboim

"Prime Obsession", by John Derbyshire

"Prime Numbers", by David Wells

...to begin with.