Prime Number Spiral 9.00

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.

Product Specifications

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License Freeware
Price $0.00
Downloads 592
OS Support Windows Install and Uninstall
File Name pns_setup.zip
File Size 1.56 MB ( 1,597 KB )
Published Jun 26, 2004 (20 years ago)
Updated Jan 11, 2017 (7 years ago)

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Product Details

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.

Release Info: Minor Update on Aug 07, 2016
Release Notes: Now fully Windows 8 compatible
Related Tags: prime number spiral prime numbers primes Ulam spiral mathematical software

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