A richly featured app for everything involving prime numbers.
Available utilities:
-Test numbers for primality.
-Calculate a number's unique prime factorization.
-List every divisor of a number.
-Generate a random prime, with the option to specify a range in which the prime is to be found.
-Browse through a complete list of the first 10,000 primes.
-Calculate pi(n), the prime counting function. This is the number of primes less than or equal to n.
-Calculate the greatest common divisor (GCD) of two numbers.
-Calculate the lowest common multiple (LCM) of two numbers.
-Find the value of Euler's totient function, phi(n). This is the number of positive integers less than or equal to n that are coprime to n.
Most features allow testing of numbers up to 9,999,999,999,999,999 (10^16 -1).
This app is completely free and is not ad supported.
Tags: prime factory, "prime factory" android, android "prime factory", factory prime, factory to prime numbers.
Available utilities:
-Test numbers for primality.
-Calculate a number's unique prime factorization.
-List every divisor of a number.
-Generate a random prime, with the option to specify a range in which the prime is to be found.
-Browse through a complete list of the first 10,000 primes.
-Calculate pi(n), the prime counting function. This is the number of primes less than or equal to n.
-Calculate the greatest common divisor (GCD) of two numbers.
-Calculate the lowest common multiple (LCM) of two numbers.
-Find the value of Euler's totient function, phi(n). This is the number of positive integers less than or equal to n that are coprime to n.
Most features allow testing of numbers up to 9,999,999,999,999,999 (10^16 -1).
This app is completely free and is not ad supported.
Tags: prime factory, "prime factory" android, android "prime factory", factory prime, factory to prime numbers.





Comments and ratings for Prime Factory
(77 stars)
by Pradip Chavan on 01/01/2013
Good
(77 stars)
by A Google User on 28/11/2012
Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes
(77 stars)
by robert on 15/07/2011
Nice clean app
(77 stars)
by Tash on 15/02/2011
Yay my birthday is a prime. Such a cool app
(77 stars)
by Jon on 10/02/2011
Cool!