Mathematical Olympiads

Number Theory

• G. H. Hardy, E.M. Wright, An Introduction to the Theory of Numbers, Oxford University Press.
• Ivan Niven, Herbert S Zuckerman, Hugh L Montgomery, An Introduction to the Theory of Numbers, John Wiley & Sons.
• Kenneth H. Rosen, Elementary number theory and its applications, Addison-Wesley Publishing Company.
• W. Sierpinski, Elementary Theory of Numbers, North Holland.
• W. Sierpinski, 250 Problems in Elementary Number Theory, Elsevier Publishing Company.
• David M. Burton, Elementary Number Theory, McGraw Hill.
• Thomas Koshy, Elementary Number Theory with Applications; Elsevier Publishing Company.