Factorization and Primality Testing

David M. Bressoud

ISBN 10: 0387970401 / ISBN 13: 9780387970400

Edité par Springer, Springer Okt 1989, 1989

A propos de cet article

This item is printed on demand - Print on Demand Titel. Neuware -'About binomial theorems I'm teeming with a lot of news, With many cheerful facts about the square on the hypotenuse. ' - William S. Gilbert (The Pirates of Penzance, Act I) The question of divisibility is arguably the oldest problem in mathematics. Ancient peoples observed the cycles of nature: the day, the lunar month, and the year, and assumed that each divided evenly into the next. Civilizations as separate as the Egyptians of ten thousand years ago and the Central American Mayans adopted a month of thirty days and a year of twelve months. Even when the inaccuracy of a 360-day year became apparent, they preferred to retain it and add five intercalary days. The number 360 retains its psychological appeal today because it is divisible by many small integers. The technical term for such a number reflects this appeal. It is called a 'smooth' number. At the other extreme are those integers with no smaller divisors other than 1, integers which might be called the indivisibles. The mystic qualities of numbers such as 7 and 13 derive in no small part from the fact that they are indivisibles. The ancient Greeks realized that every integer could be written uniquely as a product of indivisibles larger than 1, what we appropriately call prime numbers. To know the decomposition of an integer into a product of primes is to have a complete description of all of its divisors.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 260 pp. Englisch.

N° de réf. du vendeur 9780387970400

Détails bibliographiques

• Titre: Factorization and Primality Testing
• Éditeur: Springer, Springer Okt 1989
• Date de parution: 1989
• Langue: anglais
• ISBN à 10 chiffres: 0387970401
• ISBN à 13 chiffres: 9780387970400
• Reliure: Buch
• État de l'article: Neu
• Dimensions: 241 L x 160 H x 20 P (en millimètres) 241 millimètres de largeur par 160 millimètres de hauteur par 20 millimètres de profondeur
• Poids: 559 grammes

A propos de ce titre

Synopsis

"About binomial theorems I'm teeming with a lot of news, With many cheerful facts about the square on the hypotenuse. " - William S. Gilbert (The Pirates of Penzance, Act I) The question of divisibility is arguably the oldest problem in mathematics. Ancient peoples observed the cycles of nature: the day, the lunar month, and the year, and assumed that each divided evenly into the next. Civilizations as separate as the Egyptians of ten thousand years ago and the Central American Mayans adopted a month of thirty days and a year of twelve months. Even when the inaccuracy of a 360-day year became apparent, they preferred to retain it and add five intercalary days. The number 360 retains its psychological appeal today because it is divisible by many small integers. The technical term for such a number reflects this appeal. It is called a "smooth" number. At the other extreme are those integers with no smaller divisors other than 1, integers which might be called the indivisibles. The mystic qualities of numbers such as 7 and 13 derive in no small part from the fact that they are indivisibles. The ancient Greeks realized that every integer could be written uniquely as a product of indivisibles larger than 1, what we appropriately call prime numbers. To know the decomposition of an integer into a product of primes is to have a complete description of all of its divisors.