The Prime Number Spiral (a.k.a. the Ulam Spiral) is constructed as follows: Consider a rectangular grid. We start with the central point and arrange the positive integers in a spiral fashion (anticlockwise). The prime numbers are then marked. There is a tendency for the prime numbers to occur on diagonal lines, however far out into the spiral one goes. This is software is for exploring the Prime Number Spiral. It also (a) allows coloring of the prime numbers in various ways, (b) displays a random arrangement to compare with the primes and (c) shows how square and triangular numbers are located on the spiral.
Prime Number Spiral The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.
Primes calculates the prime numbers 1..N, tells you if N is prime etc. Prints tables of primes. Computes the prime just below or above N. calculates the prime numbers 1..N, tells you if N is prime etc.
Factorizer A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.
Prime Number Calculator 4.7.8 Calculate the prime numbers between two any limits. It uses a deterministic test and uses the Sieve of Eratophenes logic. Displays the result in decimal and binary stars. Small application window allows simultaneous use with Microsoft Word, Outlook, Excel, etc.. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Free one month trial. Only 99¢ per month. Educational discount: 20%.
Prime Poster 2.0 Save money and time in your shopping. Use Prime Poster to manage and print your shopping list. Prime Option also stores key phone numbers and special messages. It is easy to use and is completely free. It needs Microsoft .Net Framework 1.1
Mathematics Suite 1.0.4 3 Mathematics Applications for 1 Price: Factor Calculator, Prime Number Calculator, Primality Tester. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Small application window allows simultaneous use with Microsoft Word, Outlook, Excel, etc.. No need to even click a button, simply type the number/s and press enter. Free one month trial. Only $4.95 for the suite.
Mathematics Suite 1.0.2 3 Mathematics Applications for 1 Price: Factor Calculator, Prime Number Calculator, Primality Tester. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Small application window allows simultaneous use with Microsoft Word, Outlook, Excel, etc.. No need to even click a button, simply type the number/s and press enter. Free one month trial. Only $4.95 for the suite.
Factor Calculator 5.7.9 Calculate the factors of any number with a single click. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Free one month trial. Only $4.95 for the suite, also includes Prime Number Calculator and Primality Tester.
Mystery Case Files: Prime Suspects Deluxe 1.0 The highly-anticipated sequel has arrived! Put on your gumshoes and let the super- sleuthing begin. The Queens Hope Diamond has been stolen. Search for clues throughout 22 levels, find the offending culprit, and recover the stolen gem. Expand your investigation through the games 29 unique locations by finding items to unlock each level. Thousands of clues are hidden within the beautiful illustrations, creating a new game experience each play.
Animated Halloween Wallpaper The spiral of terror is unleashing skulls on your desktop. Download and install this wallpaper now.
Hpmbcalc Hex Calculator A programmable multiple-precision hex calculator with many utilities. With it, you can perform a lot of big number math and encryption operations, such as: square root, modular inverse; hash make; primality test; hex, dec, oct, bin conversions.
