CFB Primes
CFB Primes is an optimised PalmOS program which can find the prime factors and closest primes of any integer number up to one billion (US) in a few seconds or less. The standard edit menu allows you to make use of the results in other applications. CFB Primes is available free of charge.
http://www.cfbsoftware.com/palmfiles/primes.zip - 5Kb - Download - Screenshot

Factorizer
Factorizer is a Windows program to find factors of numbers up to 2,147,483,646 and to find primes, pairs of primes and Palmen colors of numbers. Or in more detail, Factorizer may be used: (1) to get the prime decomposition of all numbers in a range of numbers, (2) to get all factors of a single... 107 and 109) in a certain range, (5) to count (without displaying) the prime numbers in a range of numbers, (6) to find Fermat and Mersenne primes < 2,147,483,647, and (7) to find the Palmen color of a number or the colors of a range of numbers.
http://www.hermetic.ch/factors/factorizer_setup.zip - 2Mb - Download - Screenshot

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... 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.
http://www.hermetic.ch/pns/pns_setup.zip - 2Mb - Download - Screenshot

Mathematics Suite
3 Mathematics Applications for 1 Price: Factor Calculator, Prime Number Calculator, and Primality Tester All applications feature: Dream ƒrequency "no-frills" style as described by Download. com editor, Recommended on The Math Forum @ Drexel (University) for Middle School, High School and... Free live, email, phone and fax technical and sales support. ... Beeps high if prime and beeps low if has factors. ... It uses a deterministic test and uses the Sieve of Eratophenes logic. ... Free one month trial.
ftp://s:oftware@dreamfrequency.com/Maths.zip - 6Mb - Download - Screenshot

Laser Dolphin (for Mac)
When the Prime Minister has been abducted by aliens who can you call? Laser Dolphin, of course! With his unique blend of speed, agility, and firepower, Laser Dolphin is no ordinary dolphin. He is the only one capable of rescuing the Prime Minister. Take control of Laser Dolphin to experience... You will travel through 4 worlds and conquer 50 levels in search of him. ... Finding the Prime Minister will not be an easy task. ... You will encounter many deadly foes and pass through the occasional secret passage on your journey.
http://www.dingogames.com/dolphin/laserdolphindemo.dmg - 3Mb - Download - Screenshot

Laser Dolphin (for Windows)
When the Prime Minister has been abducted by aliens who can you call? Laser Dolphin, of course! With his unique blend of speed, agility, and firepower, Laser Dolphin is no ordinary dolphin. He is the only one capable of rescuing the Prime Minister. Take control of Laser Dolphin to experience... You will travel through 4 worlds and conquer 50 levels in search of him. ... Finding the Prime Minister will not be an easy task. ... You will encounter many deadly foes and pass through the occasional secret passage on your journey.
http://www.dingogames.com/dolphin/laserdolphindemosetup.exe - 3Mb - Download - Screenshot

Prime Option
Prime Option is used to measure what is important and to select the best option. It can be used to choose products, software, development options, shares, funds, staff, features and design points. It can also be used to measure judgments, importance, risk, compliance, governance and requirements... User can choose to use pair-wise comparisons which will provide an additional benefit of measuring the decision making consistency. ... Prime Option strength lies in the way it encourages process driven decision making and its: Improvement in complex decision making Use of a standard framework...
http://www.primeoption.com.au/PrimeOptionSetup.zip - 318Kb - Download - Screenshot

Prime Number Calculator
Calculate the prime numbers between any two limits with a single click. It uses a deterministic test and uses the Sieve of Eratophenes logic. Displays the result in decimal and binary stars. Small application window allows simultaneous use with Microsoft Word, Outlook, Excel, etc.. ... Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. ... Free one month trial. ... Only 99¢ per month. ... Educational discount: 20%. ... Click minimize (_) to send to tray and click icon with either mouse button to pop up.
ftp://s:oftware@dreamfrequency.com/Primes.zip - 2Mb - Download - Screenshot

Hpmbcalc Hex Calculator
This is a programmable multiple-precision hex calculator with many utilities for you to perform a lot of big number math operations. Key Features: 1. Standard hex calculator: basic math operations; Hex/Dec/Oct/Bin conversion; byte/operand swap; square root, Jacobi symbol calculation. ... 5. ... Hex formatter: ASCII text, c-source code, memory dump, big number to hex number. ... Pseudo-random data/prime generator: generate pseudo-random sequence of bits; search for random prime. ... 6. ... Randomicity/primality test: perform primality test and some statistical tests.
http://www.hexprobe.com/hpmbcalc/download/hpmbc332.zip - 1Mb - Download - Screenshot

Utilities Suite
10 Utilities for 1 Price: * Phone Mnemonics - Generate words from phone numbers. Find out if your phone number is 1 800 PHONE ME, 555 IAM L337, 555 ROBERTA, etc.. Make your phone number easy, fun and cool to remember, * Epiphany Notes - Create sticky notes on the desktop. ... requency "no-frills" style reviewed by Download. ... com editor, Listed on The Math Forum @ Drexel (University), Small application window allows simultaneous use with Microsoft Office, Outlook, MSIE, etc. ... Applications feature: Dream ?
ftp://frequencysoftware.com/Utilities.exe - 4Mb - Download - Screenshot