About 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.
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.
Previous Versions
Here you can find the changelog of Prime Number Spiral since it was posted on our website on 2015-04-26 03:00:00.
The latest version is 9.00 and it was updated on 2024-03-27 14:27:02. See below the changes in each version.
Prime Number Spiral version 9.00
Updated At: 2016-08-07
Prime Number Spiral version 7.57
Updated At: 2007-04-04
Changes: Minor improvements.
Disclaimer
External Download
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