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 allows coloring of the prime numbers in various ways, displays a random arrangement to compare with the primes and shows how square and triangular numbers are located on the spiral.

Limitations:

Limited functionality

Like it? Share with your friends!

Other Windows Software of Developer «Hermetic Systems»:

Easy Graphics File Converter Easy Graphics File Converter is for converting one or many graphics files from one format to another. The graphics file formats supported are GIF, JPG, BMP (Windows bitmap files) and PNG (Portable Network Graphics). The last format is comparatively new, bu

Hermetic Word Frequency Counter Advanced This software scans one or more docx, text or text-like files (e.g. HTML and XML files) and counts the number of occurrences of the different words or phrases (pattern matching can be used). There is no limit on the size of an input text file. The words/ph

Email Encryption End-to-End 'Email Encryption End-to-End' is designed to make it easy to send and receive encrypted email securely. It can be used to encrypt a message to be sent via any email program (including Outlook Express) and any webmail that supports attachments (files attach

Data Destroyer When Windows 'deletes' a file it does not actually destroy the contents of the file but rather simply unlinks the file from the file directory system, leaving the contents of the file in the disk sectors. This data will remain there until the operating sys

Keywords Meta Tag Generator In contrast to freeware keywords meta tag generators, which require *you* to select keywords, this program scans an HTML or PHP file, counting the number of occurrences of words and how they are used, and produces an appropriate keywords meta tag for the d

Julian-Gregorian-Dee Date Calculator Windows software to convert between Julian, Gregorian, Dee and Dee-Cecil calendar dates in various formats, and to add and subtract a number of days, weeks, months and years to or from a given date. Also displays a sequence of Gregorian and Dee (or Dee-Ce

HTML Table Creator Tool This program is an interactive TABLE generator which handles COLSPAN and ROWSPAN, thus enabling creation of complex tables with cells larger than 1x1. Cell specifications can include cell content, font name, font size, color, alignment, etc. A cell speci

Easy Date Converter Designed for easy performance of date calculations. Adds or subtracts a number of days or months to a date, calculates the number of days between two dates and converts among Gregorian dates, Julian dates, ISO 8601 Week dates, Hermetic Leap Week dates, Ju

Your Planetary Transits Windows software to calculate the exact dates and times at which transits between two selected planets (including the Sun) begin and end (relative to chosen orb values). Planetary transits are of two kinds: world transits (a.k.a. mundane transits) and pers

Keywords Meta Tag Generator Advanced In contrast to freeware keywords meta tag generators, which require *you* to select keywords, this program scans an HTML document, counting the number of occurrences of words and how they are used, and produces an appropriate keywords meta tag for the docu

Series Series is Windows application which creates and displays some know numeric sequence (series like Fibonacci and prime numbers). The result can be redirected to a file. It can handle 19 number of numerical series.

GoldScrap Calculator GoldScrap Calculator can save you both time and money. By using this application you will be able to speed up your precious metal scrap (gold, platinum, silver, and sterling silver) selling or purchasing operations. GoldScrap Calculator software completely

Calculate this for Windows 8 With Calculate this app you can practice simple calculations in a fun and easy way. It is specially designed for the kids to learn the arithmetic calculations in an easy way.

2M Navigation Assistant This is a Saiplan Editor, Mercator World Map Plotter, Navigation Calculator, and GPS tracker. Keep navigation waypoints and sailplans for ships or yachts in an editable format and translate to other formats like delimited, AMVER, MOVEREP, NMEA $CCWPL. Maps

WhizKids Multimedia PC Tutor 2006 Mathematics Primary 5 (For ages 10 and 11) WhizKids is a popular curriculum-based English and Mathematics learning software written according to syllabus stipulated by the Ministry of Education in Singapore. It provides a very effective, self-paced learning approach to help you

Marine Software Bundle 2007 Marine Software Bundle is a user-friendly Draught Survey calculation program for Ships' Officers and Marine Surveyors. It is easily operated using either Keyboard or Mouse. Marine Software Bundle complies with the latest UN ECE standards for Draught Survey

Mathematics Quiz This program is designed for students aged 7 - 9 in Primary 1 - 3. There are over 1500 challenging Math's quizzes and problem sums to practice on. Topics include Addition, Subtraction, Multiplication, Division, Length, Weight, Time, Money, Fractions, Graph

Graphing Calculator 3D Professional Easy-to-use 3D grapher that plots high quality graphs for 2D and 3D functions and coordinates tables. Graphing equations is as easy as typing them down. Graphs are beautifully rendered with gradual colors and lighting and reflection effects. Both Cartesian

ScalarCalc ScalarCalc is a free unit converter / advanced calculator that is powerful enough to solve real math problems with units and simple enough to perform everyday unit conversions. Try the built in Equations feature to solve common problems. Unit Tables with n

Animated Money Animated Money teaches coin recognition and math skills using U.S. and Canadian coins. The coins are scanned in to be highly recognizable. Three types of games are provided, including coin recognition and adjustable-level matching games. Ten matches earn t

Supported Operating Systems:

Windows 10 |
Windows 2000 |
Windows 2003 |
Windows 7 |
Windows 8 |
Windows 98 |
Windows Me |
Windows NT |
Windows Vista |
Windows XP |

Comments on Prime Number Spiral:

Comments not found

Windows Software - Free Windows Downloads, Apps, Games, Freeware, Skype, Media Player, Antivirus, Gimp, Live, Starter for Windows XP, Vista, 7, 8, 10