Prime Factors
Hermetic Systems

Windows software to find prime numbers, pairs of primes,
all factors of a given number (and more)

1. Introduction

Download the
trial version
a user license
Prime Factors may be used to: In addition a "filter" condition may be set to allow examination of numbers with a constant offset from an arithmetical or a geometrical progression, e.g., just those numbers of the form 7*n - 12 or 10n + 2. The main screen looks like this:

Prime Factors screenshot

Examples of the use of the program are given in the user manual. Following accepted mathematical convention, the number 1 is not held to be a prime number.

User Manual
  prime number spiral

Trial version: The Prime Factors installation program can be downloaded from this website for the purpose of installing a trial version for evaluation. Click on the following link for further information:

Download Prime Factors ...

Click here to see prices.
Price and ordering: A user license is available for a period of 3 months or with no time limit (a 'perpetual' license). Prices for each type of license are given at Purchase a User License. An activation key is required in order to make the trial version fully functional, and can be obtained immediately (or soon after) your purchase.

Refund: A refund will be provided promptly up to thirty days after purchase if the software does not perform satisfactorily.

Updates: Purchasers of a user license for this software are entitled to an update to any later version at no additional cost.