Beginners books on number theory?

In summary, the conversation revolved around book recommendations for someone interested in number theory. Two books were suggested, "Number Theory" by George E. Andrews and "Elementary Number Theory and Its Applications" by Kenneth H. Rosen, with the latter being a more comprehensive and well-written option. It was also suggested to start with online articles on the subject instead of textbooks, as they may not provide a satisfying overview of the topic. The idea of focusing on a specific pure-maths topic like algebra or analysis was also mentioned.
  • #1
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I want to venture into number theory and I was hoping to get some book recommendation from you guys. Which books do you think best describes and has examples on number theory for a beginner?
 
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  • #2
I would recommend Number Theory by George E. Andrews. It's great for a general introduction. While there aren't *that* many examples, there are hints and solutions to selected exercises. Additionally, at around $20CDN, if you find the book doesn't suite your needs, at least you didn't break the bank.
Elementary Number Theory and Its Applications by Kenneth H. Rosen is a very broad introduction to number theory. The book covers many topics and has a lot of examples. Perhaps even more importantly, it's written in a clear and sophisticated manner, and is well suited for both beginners and enthusiasts.
Hope this helps!
 
  • #3
texts on number theory

Maybe start with online articles on number theory rather than books?

Most textbooks on number theory are a bit unsatisfactory, since most of the classic problems that have been solved were solved by creating or importing chunks of new maths [abstract algebra, galois theory, statistical tracking of prime frequency...] into number theory.

So number-theory books usually give me the feeling of being a hasty overview of big topics pulled together, bundled together with the still-unsolved classic problems which those big topics have to-date failed to unlock. A bit of a mish-mash of rather difficult maths and a clump of questions the maths hasn't sorted out yet. At least to me...

Perhaps more worthwhile to just dig straight into a single specific pure-maths topic, like algebra or analysis.

Just a suggestion.

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1. What is number theory?

Number theory is a branch of mathematics that deals with the properties and relationships of whole numbers, integers, and rational numbers. It is a fundamental and ancient field of study that has applications in various areas of mathematics, such as cryptography and computer science.

2. Why is it important to study number theory?

Studying number theory helps develop problem-solving skills and critical thinking abilities. It also has practical applications in fields such as computer science, cryptography, and finance. Additionally, number theory serves as the foundation for other areas of mathematics, such as algebra and geometry.

3. What are some key concepts in number theory?

Some key concepts in number theory include prime numbers, divisibility, modular arithmetic, and the fundamental theorem of arithmetic. Other important topics include perfect numbers, Diophantine equations, and congruences.

4. What are some recommended beginner books on number theory?

Some popular beginner books on number theory include "A Friendly Introduction to Number Theory" by Joseph H. Silverman, "Elementary Number Theory" by Kenneth H. Rosen, and "Number Theory: A Lively Introduction with Proofs, Applications, and Stories" by James Pommersheim, Tim Marks, and Erica Flapan.

5. Are there any online resources for learning number theory?

Yes, there are many online resources available for learning number theory. Some recommended websites include Number Theory Web (numbertheory.org), Brilliant (brilliant.org), and Khan Academy (khanacademy.org). These websites offer interactive lessons, practice problems, and other resources to help beginners understand number theory concepts.

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