1)   Factor Calculator 5.8.8 Calculate the factors of any number with a single click. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Listed on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. 2)   Easy Measure Converter 1.0 Download Free Measure Converter: inch, feet, yard, rod, furlong, mile, league, chain. Length and Distance Conversions.The program interface is quite simple so even if you are a beginner you can use it without any trouble. 3)   Factorizer 9.42 A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms. 4)   CFB Primes 2.0 CFB Primes is an optimised PalmOS program which can find the prime factors and closest primes of any integer 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. 5)   Prime Integer Observatory 1.0 This application illustrates the notion of an integer’s factors, and of the related property of integers called primeness, or primality. An integer is called prime if it is the product of only one distinct pair of integers.