 The Prime Glossary  Chris Caldwell; Dept. of Mathematics & Computer Science, Univ. of Tennessee at Martin
A guide to the terminology of prime numbers, and links to other pages with fuller definitions and information, written on two levels: for schoolteachers and students to define the basic words of elementary prime number theory and list the unusual or curious
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 Prime Hunter Game  Benny Lam, Gameducate.com
Hunt for prime numbers (or the largest prime factor in a composite number) from a board with a random layout of digits. Free download, or shareware version available. For Windows.
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 Prime Listening  Ivars Peterson (MathTrek)
Mathematician Chris K. Caldwell of the University of Tennessee in Martin has developed a scheme for listening to sequences of primes  to hear both simple patterns and perplexing irregularities found among those numbers. "Multimedia allows the use of
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 Prime Number Generator  Mark Chamness
This Java applet quickly generates a long list of prime numbers. When you pause or stop the list, you can scroll through the numbers.
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 Prime Number Listening Guide  Chris Caldwell; Dept. of Mathematics & Computer Science, Univ. of Tennessee at Martin
A guide to an online program that you can use to create your own "primal sounds" if you can play midi files. Caldwell introduces a few ways to hear the primes and use them to hear both the simple patterns (there are some) and the perplexing irregularities
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 Prime Number List  James Brennan
A page with a script that generates a list of prime numbers. Once started, it will run until you click 'Stop' or your computer runs out of memory. A second page writes the list to a new Web page suitable for printing.
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 The Prime Number Maze  William Paulsen; Arkansas State University, Jonesboro, AK
Navigate mazes of binary numbers determined by the distribution of the prime numbers. Try mazes at Beginner (binary notations and prime numbers), Intermediate (500 rooms), Advanced (5000 rooms), Super Advanced (6 times larger than the advanced), or Ultimate
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 Prime Numbers
Browse primes smaller than 10 billion, or see a list within a given range, or have such a list emailed to you.
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 Prime Numbers  Alex LópezOrtiz and the Sci.Math FAQ Team
Links to information on: Largest known Mersenne prime; Largest known prime; Largest known twin primes; Largest Fermat number with known factorization; Algorithms to factor integer numbers; Primality Testing; List of record numbers; What is the current
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 Prime Numbers and Factoring  Ray Ontko
A collection of links related to prime numbers and factoring of very large numbers, including FAQs from RSA Labs.
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 Prime Numbers and Factors  Machinery's Handbook 25
Tables give factoring information on numbers from 9600 to 21600. Reprinted from Machinery's Handbook, 25th Edition ("The Bible of the Mechanical Industries"). Prime numbers in the tables are indicated by the letter P. If a number is not prime, the table
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 PrimeNumbers.net  John Barth
Answers to commonly asked questions about primality: What are prime numbers? What are composite numbers? How do I find prime numbers? What are some types of prime numbers? What is the biggest prime number? Other resources include original worksheets available
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 The Prime Puzzles & Problems Connection  Carlos Rivera
Problems and puzzles having to do with prime numbers. A new puzzle is posted each Saturday morning. Also links to related Web pages, and a short bibliography.
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 Primes and Composites (Math Chat)  Frank Morgan, MAA Online
Answering the challenge: Consider the sequence of integers 10n + 1: 11, 101, 1001, ... Are there infinitely many primes? Infinitely many composite numbers? Whenever n is odd, 10n + 1 is divisible by 11. Modulo 11, 10n + 1 = (1)n + 1 = 0 if n is odd,
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 A Prime Surprise  Ivars Peterson (MathTrek)
Many of the 100 or so people who had helped with the nineprime effort immediately signed up for the new quest and began checking numbers. To everyone's surprise, Manfred Toplic (the same!) set the new record, reporting on March 2 that he had found 10
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 Prime Talent  Ivars Peterson (MathTrek)
Whole numbers have all sorts of curious properties. Consider, for example, the integer 1998. It turns out that 1998 is equal to the sum of its digits plus the cubes of those digits (1 + 9 + 9 + 8 + 13 + 93 + 93 + 83). What's the largest number for which
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 Prime Theorem of the Century  Ivars Peterson (MathLand)
"Prime numbers have always fascinated mathematicians," Underwood Dudley of DePauw University in Indiana wrote in a 1978 textbook. "They appear among the integers seemingly at random, and yet not quite: There seems to be some order or pattern, just a little
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 Prime Time  Georgia Louviere
Student activities and teachers' pages designed to teach students to identify the first 25 prime numbers by using the "sieve" method first used by Eratosthenes, to explain why the number one is neither prime nor composite, and to demonstrate why the number
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 Prime Treasure Hunt  Ivars Peterson (MathTrek)
The headline shouted, "Hacker accused of using U.S. West computers on math problem." The Associated Press news report, dated Sept. 15 [1998], went on to describe how computer consultant Aaron Blosser of Lakewood, Colo., had enlisted 2,585 computers at
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 The Professor in a Syllabus: Elementary Algebra  Vision Alpha Products
Selfinstructional elementary algebra and arithmetic. Learn at your own pace from dozens of brief, animated, independent, selfteaching modules. Watch videos of TPIAS in action for distance learning, and its demo, before subscribing. Also available at
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 A Progression of Primes  Ivars Peterson (MathTrek)
Searches for patterns among prime numbers  whole numbers exactly divisible only by themselves and one  have long served as stiff tests of the ingenuity and perseverance of mathematicians. In recent years, the use of computers has brought a steady stream
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 Proof: The Sum of Prime Twins is Divisible by 12  Mathematics Dept., College of Marin
Prime twins are prime numbers that are two numbers apart. For example 41 and 43 are prime twins. Can you PROVE that the sum of prime twins is divisible by 12?
(This proof doesn't work for the prime twins 3 and 5.)
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 Publications of François Morain
Links to papers on elliptic curves: Primality proving; Complex multiplication; Pseudoprimes; Elliptic curves over finite fields; Discrete logarithm over algebraic curves; Character sums; Miscellaneous. Also in French.
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 Pulchritudinous Primes
Visualizing the distribution of prime numbers: graphical investigations in 2D, 3D, Prime Island, The Ulam Spiral Phenomenon, Triangle Numbers on the Ulam Spiral. With an introduction, Why Primes?
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 Quite BASIC  Nikko Strom
A JavaScript environment for coding in the classic BASIC programming language. Math projects include the Fibonacci Sequence, Fibonacci Squares, the Sieve of Eratosthenes, and Mandelbrot; puzzles include the Towers of Hanoi and variations of the Eight
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 Relative Prime Applet (MSTE)  Nicholas Exner; University of Illinois at UrbanaChampaign (UIUC)
A Java applet that compairs pairs of numbers to see whether they are relatively prime. The main goal of this action is to demonstrate the theorem that the probability of two positive integers chosen at random being relatively prime is six divided by pi
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 The Return of Zeta  Ivars Peterson (MathTrek)
The Riemann hypothesis is widely considered the outstanding unsolved problem in mathematics. Generations of mathematicians have been lured into hunting for a proof of this celebrated conundrum. All have so far failed. Lately, however, a cautious optimism
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 RuthAaron Pairs and an Algorithm  Joe K. Crump
A page on RuthAaron numbers and a novel algorithm capable of generating
very large ones (200+ digits).
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 Scrambled Grids  Ivars Peterson (MathTrek)
The socalled baker's map, or transformation, in dynamical systems theory. One special case: Start with a square. Stretch it to twice its original length
while making it half as wide. Cut the result in half, and stack one half on top of the other to
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 Spirals of Primes  Bryan Clair, University of Chicago
This page will generate a spiral of numbers, with the primes marked as stars, and the composites as dots. The center of the spiral is marked with an 'X'. Specify the number at the center of the spiral below, and the width (and therefore also the height)
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 Steve's Math Site
"Mathematic memorabilia" by a Phoenix, Arizona high school student: binary numbers, factorials, calculations of 2^x from x=1 to x=200+, hand calculations of pi, logarithms and one radian, 3^x from x=1 to x=100+, and more.
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 Teaching Ideas for Primary Teachers: Maths
Math activities for ages 511 include a puzzle display, shapes worksheets, ideas for making a maths dictionary, a questioning technique, and many more games, worksheets, and activities for the classroom.
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 Testing Subsets Using Prime Numbers  Ian Clarke
Algorithm for subset testing which assigns a prime number to each element of the set and multiplies the primes. With descriptions of and comparisons to two other algorithms.
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 Title III MSS Final Performance Report  Dana Lee Ling
Dana Lee Ling is a mathematics and science software specialist at the College of MicronesiaFSM. Articles document the College's attempts to increase the success of prealgebra and algebra students through "conceptual" and technologybased approaches.
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 Tools for Understanding  John Woodward; University of Puget Sound
A resource guide for extending mathematical understanding in secondary schools, for educators who teach mathematics and are interested in integrating common
technologies into their daily instruction. Onsite strands (Math Concepts with lessons related
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 Trisecting the Angle  Steven Dutch; University of Wisconsin  Green Bay
Why is trisecting an angle with a straightedge and compass impossible? Discussion includes several other proofs of impossibility (the largest prime number, the square root of 2, repeating patterns in the plane) and some alternate methods of trisection
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 The Virtual Mathematics Center  Martindale's Graduate & Undergraduate Center
Preprints and online journals from a wide variety of math and science organizations; Online math dictionaries and encylopedias; mathematics courses, tutorials and databases; courses by subject; related mathematics information and databases.
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 Web of Primes  Ryan Ingram
The first twenty billion prime numbers, indexed, searchable by ordinal position, and written out in English. See also Ingram's http://cpnumbers.com/, for the first one hundred million counting numbers factored.
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 Who was Marin Mersenne?  Luther Welsh
It was not until the mid 20th century that Mersenne became known primarily for his Prime Number Conjecture. Historically, he was much better known for his correspondence with leading scientists of the day. Interested in optics, he also been called the
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 The World of Trotter Math  Terry Trotter, Escuela Americana, San Salvador, El Salvador
A page of problems, problem sheets, and investigations, with links to image files of an inclass math newsletter, Trotter Math News. Of particular interest to the author are numbers: happy and dizzy numbers; palindromes; super squares; perfect, amicable,
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 Yves Gallot's Proth.exe and Cunningham Chains  Warut Roonguthai
A collection of interesting Cunningham chains of large prime numbers (with a link to an explanation of Cunningham chains), and how to find some of them using Yves Gallot's Proth.exe, a Windows 95/NT program.
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