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  1. Prime Numbers
    Browse primes smaller than 10 billion, or see a list within a given range, or have such a list emailed to you. ...more>>

  2. Prime Numbers - Alex López-Ortiz 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 ...more>>

  3. 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. ...more>>

  4. 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 ...more>>

  5. Prime Numbers - MacTutor Math History Archives
    Linked essay describing the work on primes from Pythagoras through Gauss, Legendre, Riemann, and Valee Poussin, with additional sections on still unsolved problems, the latest prime records, and other web sites, as well as 21 references (books/articles). ...more>>

  6. Prime Numbers - Math Forum, Ask Dr. Math FAQ
    What is a prime number? What's the 'Sieve of Eratosthenes'? What is the largest known prime? ...more>>

  7. The Prime Pages - Chris Caldwell; Dept. of Mathematics & Computer Science, Univ. of Tennessee at Martin
    An index of information on prime numbers. Definition; Articles and information on primes, including how to find and prove primality, and a wealth of historical information. Lists of primes and prime factorizations, including the first x primes and the ...more>>

  8. Prime Presentations - Karyn Hodgens
    K-12 workshops for professional development. An established educational consulting firm providing nationwide staff development training in the areas of math and science. ...more>>

  9. The Prime Puzzles & Problems Connection - Carlos B. Rivera
    An anthology of the most interesting problems and puzzles explicitly related to prime numbers. Organized into: Records (to convert you into a "prime hunter" - you'll discover that all you need to top a record is a PC, a good code, and a certain amount ...more>>

  10. 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. ...more>>

  11. 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, ...more>>

  12. A Prime Surprise - Ivars Peterson (MathTrek)
    Many of the 100 or so people who had helped with the nine-prime 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 ...more>>

  13. 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 ...more>>

  14. 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 ...more>>

  15. 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 ...more>>

  16. 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 ...more>>

  17. The Princeton Mathematics Community in the 1930s: An Oral History Project - Charles C. Gillispie, Albert W. Tucker, and William Aspray
    Transcripts, with abstracts, of interviews with mathematics faculty and students at Princeton University during the 1930s, recounting that decade when Kurt Gödel studied spatially homogeneous cosmological models; Albert Einstein worked on a unified ...more>>

  18. Principia Hypertextica, A Mathematics Educator's View of Web Design: Links - William I. Johnston
    Links to Web resources for information about and examples of typing math for the Internet. Typesetting, navigability, validity, accessibility, speed, other. ...more>>

  19. Principia Mathematica - A.D.Irvine; Stanford Encyclopedia of Philosophy
    The philosophy encyclopedia's entry on Principia Mathematica, the landmark work on mathematical logic and the foundations of mathematics written by Alfred North Whitehead and Bertrand Russell. Next to Aristotle's Organon, it is the most influential book ...more>>

  20. Printable Math Worksheets - Homework for Kids
    Practice worksheets, most with randomly generated problems, on the following topics: learning numbers, addition and subtraction, multiplication and division, fractions, decimals, time, measurements, perimeter, area and volume, integers, set theory, equations, ...more>>

  21. Printable Math Worksheets - TestDesigner.com
    Free printable math worksheets, with answer keys, on number concepts, measurement, geometry, algebra, and statistics. Customize your own tests by selecting from the growing database of questions -- or create your own. ...more>>

  22. Printables: Student Handouts - The Learning Network
    PDF format printable handouts. Browse by grade or subject; check out the featured handouts; or search for a topic of your choice. Other resources also available through the Lesson Planning Center links on the site. ...more>>

  23. Print Free Graph Paper - Jeremy Hughes
    PDFs of Cartesian, polar, isometric and logarithmic graph paper, optimized for printing. Available in Imperial units (inches) or metric units (centimeters), and in a choice of scales. ...more>>

  24. Prism Formulas (Ask Dr. Math FAQ) - Math Forum
    Formulas for finding the surface area and volume of a prism. ...more>>

  25. The Prisoner Problem - Anne Arundel Community College
    A classic logic problem about three prisoners, each of whom tries to determine what color his own hat is in order to be set free. ...more>>

  26. The Prisoners' Dilemma - Brefi Group
    A game to teach win-win co-operation and negotiation to teams. Purchase ready-made forms and instructions for teams to play this famous trust game, based on the "Prisoners' Dilemma" in which two criminals who are arrested after a crime are immediately ...more>>

  27. The Prisoners' Dilemma - F. Heylighen, Principia Cybernetica Web
    Cooperation in game theory: the principle of suboptimization. A game that has been and continues to be studied by people in a variety of disciplines, ranging from biology through sociology and public policy. It is a "non-zero-sum" game: the best strategy ...more>>

  28. Prisoners' Dilemma - Wayne Davis
    An interactive game simulation inspired by Prisoners' Dilemma game theory as described in the book The Selfish Gene by Richard Dawkins. The payoff is a reduction in prison sentencing of very good, fairly good, fairly bad or very bad, which is translated ...more>>

  29. Prisoners of Time - U.S. Dept. of Education
    Report of the National Education Commission on Time and Learning, April 1994, established as an independent advisory body to study the relation between time and learning in American schools. "The degree to which today's American school is controlled by ...more>>

  30. The Private Eye - Kerry Ruef
    A hands-on, investigative teaching approach that attempts to stimulate the wonder of looking closely at the world, thinking by analogy, changing scale, and theorizing. It uses everyday objects, a jeweler's loupe, and a series of simple questions, which ...more>>

  31. Prized Geometric Logic - Ivars Peterson (MathTrek)
    Computer programs can handle all sorts of data [such as] a set of discrete elements, such as temperatures. Some elements of a set may be larger in value than others, or they may exhibit some other relationship that allows you to rank them or put them ...more>>

  32. Prize offered for solving number conundrum - Ivars Peterson - Science News Online
    A proof of a conjecture related to Fermat's last theorem would earn $50,000. ...more>>

  33. Prizes and Perils of Popularizing - Keith Devlin
    A series of vignettes abouut some of the leading popularizers of mathematics. Sections include: Casti's Tale; Devlin's Tale; Stewart's Tale; Paulos's Tale; Dunham's Tale; and Why Do We Do It? Previously published in Focus. ...more>>

  34. Probabilistic Thinking - Richard Jeffrey, Princeton University
    A 1995 book. Chapters include: Probability; Methodology; Expectation; Decision; Probabilism and Induction. Solutions to problems are included. ...more>>

  35. Probability Abstract Service - University of Washington, Seattle, WA
    Latest abstracts, with some preprints and information about authors; all abstract titles (old and new titles and authors, a large file); old abstracts; submission and subscription information; and related WWW servers. ...more>>

  36. Probability and Quantile Applets - Balasubramanian Narasimhan
    The Probability Applet calculates areas under the standard normal density curves. You are presented with two fields and three buttons on top of a normal density curve. The buttons allow you to calculate areas to the left or to the right or between. The ...more>>

  37. Probability and Statistics - Math Forum
    Links to some of the best Internet resources for probability and statistics: classroom materials, software, Internet projects, and public forums for discussion. ...more>>

  38. Probability and Statistics (MathPages) - Kevin Brown
    More than 40 "informal notes" by Kevin Brown on probability and statistics: evaluating probabilities of Boolean events, area under the bell curve, N items distributed in M bins, dice rolling a given sum, a better lottery, meetings and birthdays, on random ...more>>

  39. Probability by Surprise - Susan P. Holmes et al.
    Experimenting Paradoxes - browser-sensitive Java applets (try Internet Explorer first) to try out: The Birthday Problem; Say Red; The Collector; Banach's Matchbox Problem; The Matching Problem; The IID Sequence; Polya's Urn as a restaurant choice; Random ...more>>

  40. Probability Explorer - Hollylynne Stohl
    An open-ended learning environment for Windows for representing data in multiple ways, engaging students in designing, simulating, and analyzing results of probability experiments. The software environment can be used for activities from upper elementary ...more>>

  41. Probability - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A short essay on probability theory, with links to some well-known problems: Monty Hall Dilemma; Three pancakes problem; Lewis Carroll's problem; Bertrand's Paradox; Bear cubs problem; Misuse and Misconception of Statistics; Pauling's joke; Probability ...more>>

  42. Probability in the Real World - Math Forum, Ask Dr. Math FAQ
    An introduction to the uses of probability in everyday life, including: weather forecasting, flipping coins, batting averages, lightning strikes, and the lottery. ...more>>

  43. Probability - Math Forum, Ask Dr. Math FAQ
    An introduction to basic concepts. ...more>>

  44. Probability of Getting Doughnuts - NASA Lewis Learning Technologies Project
    A box of doughnuts contains 4 glazed, 3 cream-filled, and 2 jelly doughnuts. What is the probability of getting a cream-filled doughnut, eating it, and then getting a glazed doughnut? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>>

  45. Probability: Rolling Dice - NASA Lewis Learning Technologies Project
    Probability: If a die is rolled 18 times, how many times is the number 2 expected to come up? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  46. Probability (S.M.A.R.T.) - Math Share Shop
    Counting principle; Probability reference sheet. By students at Theodore Roosevelt H.S., Bronx, & Edward R. Murrow High School, Brooklyn. ...more>>

  47. Probability (SMILE) - Laura Willis Moss, South Shore Community Academy
    A lesson designed to teach students to derive a general formula for the probability of a given event when each possible outcome is equally likely. From the Probability and Statistics section of a collection of almost 200 single concept lessons by the ...more>>

  48. Probability/Statistics and Calculus Problems of the Week (PCPOW) - Kentridge High School, Kent, WA
    Probability, statistics, and calculus problems and solutions, some of which date back to 1999. ...more>>

  49. Probability/Statistics: First Semester Project - Lisa Stanfill; Math Forum Teacher Exchange
    A culminating project developed as part of a probability and statistics class, designed to help students put the topics of data collection, organization, presentation and interpretation together to see how and why learning that content is important. ...more>>

  50. The Probability Web - Bob Dobrow; Department of Mathematics and Computer Science, Carleton College
    A collection of pages to serve people with interests in probability theory and its applications. Information is presented under the following headings: Probability links, Abstracts, Listservers, Newsgroups, People, Jobs, Journals, Software, Books, Booksellers, ...more>>

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