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Password managers help you maintain a secure collection of passwords that you use at different web sites or in other applications you might use. The key things that a great password manager must have are safe, secure storage of your passwords and the ability to easily and quickly retrieve your passwords when you need them.
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Games / Educational |
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Prime Number Spiral 8.59 |
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| Author |
Hermetic Systems |
| Date |
08/27/2011 |
| Size |
1473 KB |
| License |
Shareware |
| Price |
US $9.95 |
| Platform |
Win2000,Win7 x32,Win7 x64,Win98,WinVista,WinVista x64,WinXP |
| Installation |
Install and Uninstall |
| aFreeGo
Rating |
Not Rated |
| Downloads |
60 |
| User
Rating |
0.00 |
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Click image to enlarge
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| Minimum
Requirements |
A video resolution of 800x600 or better. |
| Limitations |
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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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