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 is a free software application from the Mathematics subcategory, part of the Education category.
The app is currently available in English and it was last updated on 2016-08-07. The program can be installed on Win XP, Win 98, Win 2000, WinVista x32, WinVista x64, Win7 x32, Win7 x64, Win8 x32, Win8 x64, Win10 x32, Win10 x6.
Prime Number Spiral (version 9.00) has a file size of 1.64 MB and is available for download from our website.
Just click the green Download button above to start. Until now the program was downloaded 283 times.
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