Prime Factory

Prime Factory Free App

Rated 4.60/5 (72) —  Free Android application by Alchemy

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About Prime Factory

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.

How to Download / Install

Download and install Prime Factory version 1.2 on your Android device!
Downloaded 5,000+ times, content rating: Everyone
Android package: org.alchemy.prime, download Prime Factory.apk

All Application Badges

Free
downl.
Android
2.1+
For everyone
Android app

App History & Updates

More downloads  Prime Factory reached 5 000 - 10 000 downloads
More downloads  Prime Factory reached 5 000 - 10 000 downloads

What are users saying about Prime Factory

K70%
by K####:

A very interesting app. Loved it

X70%
by X####:

Very good app!

B70%
by B####:

A very interesting app. Loved it

Q70%
by Q####:

Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes

Q70%
by Q####:

Exactly what I was searching for.. It can do anything related to primes. Good job.

Q70%
by Q####:

What happened with the icon?

Q70%
by Q####:

Nice clean app

Q70%
by Q####:

Yay my birthday is a prime. Such a cool app

A70%
by A####:

Good

Q70%
by Q####:

Very usefull

Q70%
by Q####:

Cool!

Q70%
by Q####:

Great

Z70%
by Z####:

Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes

Z70%
by Z####:

Exactly what I was searching for.. It can do anything related to primes. Good job.

Z70%
by Z####:

What happened with the icon?

Z70%
by Z####:

Nice clean app

Z70%
by Z####:

Yay my birthday is a prime. Such a cool app

R70%
by R####:

Good

Z70%
by Z####:

Very usefull

Z70%
by Z####:

Cool!

Z70%
by Z####:

Great

D70%
by D####:

Best one Exactly what I was searching for.. It can do anything related to primes. Good job.

D70%
by D####:

Nice Very usefull

W70%
by W####:

Mr. R S Great

D70%
by D####:

Nice clean app

D70%
by D####:

Yay my birthday is a prime. Such a cool app

D70%
by D####:

Cool!

D70%
by D####:

Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes

O70%
by O####:

Good


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Rating Distribution

RATING
4.65
72 users

5

4

3

2

1