In this app, you can test numbers for primality, find prime factors, list divisors, and generate random primes. Includes utilities for GCD, LCM, pi(n), and Euler's totient function.
AppRecs review analysis
AppRecs rating 4.5. Trustworthiness 32 out of 100. Review manipulation risk 60 out of 100. Based on a review sample analyzed.
★★★★☆
4.5
AppRecs Rating
Ratings breakdown
5 star
100%
4 star
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3 star
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What to know
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Questionable review patterns
60% review manipulation risk - some review patterns appear unusual
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Questionable review trustworthiness
32% trustworthiness - reviews show concerning patterns
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Unusually uniform ratings
100% of sampled ratings are 5 stars with very little variation
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.
