Divisor Software

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+. Free one month trial. Only $4.95 for the suite of 10 utilities, also includes Prime Number Calculator and Primality Tester.

Calculate the prime numbers between two any limits. 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 Office, etc.. Listed on the Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Free one month trial. $4.95 for the suite of 10 utilities. Student discount. Edu. discount.

Test any number for primality with a single click. It uses a deterministic test and uses the Sieve of Eratophenes logic. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Uses audio confirmation. Listed on the Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Free one month trial. Only $4.95 for the suite of 10 utilities. Student discount: 10%. Educational discount: 20%.

Quickly apply standard math operation to a group of selected cells in MS Excel. The program is very easy to use -- addition, subtraction, multiplication or division of a number (percentage, fixed value, sum, etc.) to any cells in your workbook.