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 Derivatives 1.0
Enter any number up to twenty digits, and click the button. The result will be a string of unique prime numbers that can evenly be divided into the number that was entered. This attractive, handy little prime number calculator takes any number up to twenty digits, and then factorizes all the unique prime numbers that evenly divide into the number that was entered into the field. It's small enough to neatly fit in the corner ...
Factorizer 8.89
For factoring integers, finding primes and plotting associated histograms Factorizer is a Windows program to find factors of numbers up to 2,147,483,646 and to find primes, pairs of primes and Palmen colors of numbers.
Or in more detail, Factorizer may be used:
(1) to get the prime decomposition of all numbers in a range ...
Prime or not ! 5.0
Prime Or Not ! is a complete cellection of tools for primality testing/factorization.Using PON! you can test the primality of numbers up to E200.PON! also performs tests on Mersenne's numbers up to the 99 999th; A Mersenne number has the form (2^p)-1 ...
Prime Number Calculator 4.9.4
Calculate the prime numbers between any two limits with a single click.Features:* Uses a deterministic test, * Uses the Sieve of Eratophenes logic, * Simple interface, type the start and end numbers and press enter, * Displays the result in decimal, * ...
Mathematics Suite 1.0.3
3 Mathematics Applications for 1 Price:Factor Calculator, Prime Number Calculator, and Primality TesterAll applications feature:Dream arequency "no-frills" style as described by Download.com editor, Recommended on The Math Forum @ Drexel (University) ...
Factor Calculator 5.9.6
Calculate the factors of any number with a single click or key press.Features:* Notices prime numbers, * Beeps to confirm factors calculated, * Dream Tarequency "no-frills" style as described by Download.com Editor's Review, * Simple interface, type the ...
Primality Tester 5.6.2
Test any number for primality with a single click.Features:* Uses a deterministic test, * Uses the Sieve of Eratophenes logic, * Simple interface, type the start and end numbers and press enter, * Dream Tarequency "no-frills" style as described by Download ...
Prime Integer Observatory 1.0
This application illustrates the notion of an integer's factors, and of the related property of integers called primeness, or primality. An integer is called prime if it is the product of only one distinct pair of integers. For example, 11 is prime because ...
Compact Calculator - CompactCalc 4.2
CompactCalc is an enhanced scientific calculator for Windows with an expression editor. It embodies prime numbers, rational numbers, generic floating-point routines, hyperbolic and transcendental routines. Its underling implementation encompasses high ...
Random Number Generator Pro 1.74
Generate random numbers. Random Number Generator is a Windows based application designed to generate random numbers. Program allow users choose lower and upper limits and increments of the numbers. Limits can be positive or negative values. User can exclude digits from generated ...
