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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.

Prime Number Spiral 7.22

by Hermetic Systems
Home :: Education :: Mathematics
Award: Excellent (5/5)
Prime Number Spiral 7.22
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.
Popularity Download Avg. User Rating Overall
2% - 1%
Downloads: 74 / 25 (total / last month)
Updated: 06-06-2006 05:04:28 GMT
Released: 12-05-2006 
Language: English, German 
Platform: Win95, Win98, WinME, WinXP, WinNT 4.x, Windows2000, Windows2003 
Requirements: A video resolution of 800x600 or better. 
Install: Install and Uninstall 
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