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Prime Number Spiral

For exploring the 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.

Download Prime Number Spiral - 1.91 MB

Prime Number Spiral Information

Download Download
File Size 1.91 MB
License Demo  
Requirements A video resolution of 800x600 or better.  
Screenshot Screenshot
Operating System Windows 7, 2000, XP, Vista




Prime Number Spiral Long Description:


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.

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