Prime Factory
Free App
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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.
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.
All Application Badges
Free
downl.
downl.
Android
2.1+
2.1+
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
X
by X####:
by X####:
Very good app!
B
by B####:
by B####:
A very interesting app. Loved it
Q
by Q####:
by Q####:
Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes
Q
by Q####:
by Q####:
Exactly what I was searching for.. It can do anything related to primes. Good job.
Q
by Q####:
by Q####:
What happened with the icon?
Q
by Q####:
by Q####:
Nice clean app
Q
by Q####:
by Q####:
Yay my birthday is a prime. Such a cool app
A
by A####:
by A####:
Good
Q
by Q####:
by Q####:
Very usefull
Q
by Q####:
by Q####:
Cool!
Q
by Q####:
by Q####:
Great
Z
by Z####:
by Z####:
Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes
Z
by Z####:
by Z####:
Exactly what I was searching for.. It can do anything related to primes. Good job.
Z
by Z####:
by Z####:
What happened with the icon?
Z
by Z####:
by Z####:
Nice clean app
Z
by Z####:
by Z####:
Yay my birthday is a prime. Such a cool app
R
by R####:
by R####:
Good
Z
by Z####:
by Z####:
Very usefull
Z
by Z####:
by Z####:
Cool!
Z
by Z####:
by Z####:
Great
D
by D####:
by D####:
Best one Exactly what I was searching for.. It can do anything related to primes. Good job.
D
by D####:
by D####:
Nice Very usefull
W
by W####:
by W####:
Mr. R S Great
D
by D####:
by D####:
Nice clean app
D
by D####:
by D####:
Yay my birthday is a prime. Such a cool app
D
by D####:
by D####:
Cool!
D
by D####:
by D####:
Very clean app, but I would also like a "largest prime less than" option to look at some neighbouring primes
O
by O####:
by O####:
Good
by K####:
A very interesting app. Loved it