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Friday, August 7, 2020 | History

5 edition of A Perfect Number found in the catalog.

A Perfect Number

A Perfect Number

The 39th Known Perfect Number

  • 161 Want to read
  • 3 Currently reading

Published by Sätila Förvaltning AB in Sweden .
Written in English


The Physical Object
FormatHardcover
Number of Pages685
ID Numbers
Open LibraryOL25146560M
ISBN 10978-91-86495-46-6


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A Perfect Number Download PDF EPUB FB2

5 Is the Perfect Number Paperback – November 1, by Igort (Author) out of 5 stars 6 ratings/5(6). 5 Is the Perfect Number book. Read 34 reviews from the world's largest community for readers. A romanzo straight from the Italian streets where the melan /5.

This author defines Perfect Numbers as A Perfect Number n, is a positive integer which is equal to the sum of its factors, excluding n itself. Also Check: Euclidean Geometry. Questions Based on Perfect Number. Question 1: Verify that 28 is a perfect number.

Pythagoras – three is the perfect number. Pythagoras calls three the perfect number, expressive of “beginning, middle, and end,” wherefore he makes it a symbol of Deity. The world was supposed to be under the rule of three gods, viz.

Jupiter (heaven), Neptune (sea), and Pluto (Hades). The number 28 also shares this property, for 28 = 1+2+4+7+ These “perfect” numbers have seen a great deal of mathematical study—indeed, many of the basic theorems of number theory stem from the investigation of the Greeks into the problem of perfect and Pythagorean numbers [16].

Perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is 6, which is the sum of 1, 2, and 3.

Other perfect numbersand 8, The discovery of such numbers is lost in prehistory. It is known, however, that the Pythagoreans (founded c. A Perfect number   is a positive integer that is equal to the sum of its proper divisors except itself.

Let’s take an easy example, such as 6. 1, 2, 3 and 6 are the divisors of 6. If we add up all the numbers except 6, we end with the sum of 6 itself. A number is called a perfect number if by adding all the positive divisors of the number (except itself), the result is the number itself.

6 is the first perfect number. Its divisors (other than the number itself: 6) are 1, 2, and 3 and 1 + 2 + 3 equals 6. Other perfect numbers incl and 52 rows  Some ranks may change later if smaller perfect numbers are discovered.

It is known there is .