Number Theory from First Principles

From divisibility and primes to the research frontier

Rajesh Ranjan Mahapatra

Ask the most innocent question about a whole number, and follow it honestly. It leads to the security of every bank transfer, to the deepest unsolved problem in mathematics, and to some of the most beautiful arguments ever found.

This book is being prepared for publication on Kindle. The free online edition and downloads have been withdrawn in the meantime.

© 2026 Rajesh Ranjan Mahapatra. All rights reserved.

Cover of Number Theory from First Principles