Prime Or Not ! is a complete cellection of tools for primality testing/factorization.



Using PON! you can test the primality of numbers up to E200.

PON! also performs tests on Mersenne's numbers up to the 99 999th; A Mersenne number has the form (2^p)-1 ; which makes of the 99 999th a number with 35 000 digits!


You can also generate a certificate for every Mersenne number you test in order to prove its primality.

You will find all the primes ranging inside an interval you designed using its powerful tool: Prime Search Engine.

PON includes a Prime Generator, thus you reach the next prime ahead any entry.

With its handy interface, all you have to do is to type up the number and click on the button to perform the tests above, factorize, find the prime factors, verify the Goldbach conjecture and much more...



Maybe you handle large integers and you perform operations on them, so PON includes Super Calculator; a wonderful tool that handles integers up to 200 digits on addition, substraction, multiplying and finding the Greatest Common Factor.



Using the Convertor, you will master the following conversions:

integerMersenne form

integerFermat form

Mersenne formFermat form




...and much more tools...


-All minor updates for free;

-Free technical support by e-mail; - All minor updates for free.

• Factorizer 8.6
  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,...

• 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

• Factorizer 11.09
  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...

• Primality Tester 5.2.0
  Test any number for primality with a single click

• Mathematics Suite 1.0.2
  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 College, ages 6+, Small application window allows...

• Mathematics Suite 1.0.3
  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

• Prime Number Spiral 6.5
  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...

• Prime Derivatives 1.
  This attractive, handy little prime number calculator takes any number up to twenty digits, and then factorizes all the unique prime numbers that evenly divide into the number that was entered into the field