Preface; 1. The fundamental theorem, GCDs and LCMs; 2. Listing primes; 3. Congruences; 4. Powers and pseudoprimes; 5. Miller's test and strong pseudoprimes; 6. Euler's theorem, orders and primality testing; 7. Cryptography; 8. Primitive roots; 9. The number of divisors d and the sum of divisors; 10. Continued fractions and factoring; 11. Quadratic residues; References; Index.
In this introductory book Dr Giblin describes methods that have been developed for testing the primality of numbers, provides Pascal programs for their implementation, and gives applications to coding.
"An interesting, sophisticated introduction to number theory..." American Mathematical Monthly "Of the many volumes I have seen about 'number theory and computing', this delightful, if unorthodox, introductory text is probably the finest...a great strength of this book is its emphasis on computing and on computing examples. There are several programs included in the text, often different algorithms for achieving the same computational result, and both theoretical and practical reasons for preferring one method over another are discussed. The programming language is Pascal, which is perfectly appropriate...[and] there are a great many numerial exercises and examples...only the deadest of students could possibly consider this dry; the author has brought life and energy to the subject by his presentation." Duncan Buell, Mathematical Reviews
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