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the entire directory
only in Recreations/Specific_Numbers
Description
Top
:
Science
:
Math
:
Recreations
:
Specific Numbers
(133)
0  Zero
(3)
e
(7)
Infinity
(4)
phi
(18)
Pi
(54)
Fibonacci Numbers
(15)
Integers
(11)
Perfect Numbers
@
(10)
Prime Numbers
@
(58)
Pseudorandom Numbers
@
(19)
See also:
Computers: Computer Science: Distributed Computing: Projects: Cryptography
(10)
Kids and Teens: School Time: Math: Counting and Numbers
(6)
Science: Math: Number Theory
(926)
This category in other languages:
French
(12)
37 Heaven
 Collects information around the number thirtyseven.
Absolutely Abnormal Numbers
 Published as math.NT/0006089, this note investigates numbers that are normal to no base whatsoever, and writes down explicitly such a number.
Arabic numerals
 Describes the history of the Arabic numeral system that is in use nearly all over the world today.
Ask Dr. Math: History of the Terms Google and Googleplex
 Explains how these very large numbers (1 followed by a hundred zeroes, and 1 followed by a google of zeroes, respectively) were named. With links to references. From Swarthmore's Dr. Math.
Catalan Number  MathWorld
 Illustration of the Catalan numbers related to Euler's polygon division problem.
FAQ on Special Numbers
 Answers to Frequently asked questions about special numbers.
Fibonacci Numbers and the Golden section in Nature
 Puzzles and things to do, for schools, teachers, colleges up to university level students, or just for recreation.
Friedmann's SNumbers
 These are numbers where an expression can be given using the operations of addition and squaring, using the digits of a number in order, which gives the original number. Algorithms, theorems and results.
Indian numerals
 Describes the history of the Indian numeral system.
Jewish Encyclopedia: Numbers and Numerals
 Discusses the uses and symbolism of various numbers in Hebrew literature.
Just Who is Mr. 666?
 Uses gematria to calculate the number of the beast, and evaluates what it may mean w/r specific Hebrew words and names in the Bible adding up to 666.
Mathematical Constants
 Stephen Finch has published a book of this title and here provides various supplementary materials.
Mathematical Constants and Computation
 Essays, references, links, software.
RJN's More Digits of Irrational Numbers
 Several million digits of e, and the square roots of 2, 3, 5, 6, 7, 8, and 10.
Stewy's Site
 The infinitesimal is the opposite of infinity, and mathematicians still argue over its existence. This page probes into one of the weirdest numbers in mathematics.
Sum Beastliness
 Some simple mathematics associated with 666, the Number of the Beast.
Timothy J. Warnock: Blog
 Dedicated to the natural order of the universe and to the irrational and logical chaos it presents.
Triangular Numbers
 Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient, abundant ones.
Vampire Numbers
 Numbers with a factorization containing the same digits, e.g. 1530 = 30*51.
Wikipedia  Mathematical constant
 A list of constants with links to more detailed information.
World of Numbers
 Includes a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.
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Last update: July 5, 2013 at 3:06:00 UTC 
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