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Primer app for iPhone and iPad


4.8 ( 2208 ratings )
Reference Education
Developer: John Mann
Free
Current version: 1.2.2, last update: 7 years ago
First release : 20 Oct 2013
App size: 2.04 Mb

Explore the factors.

See Primer work as you enter your number. Receive a list of prime factors for composite numbers. Watch as the next prime number is found. Explore by tapping on the next prime number. Make Primer sweat while crunching very large numbers.

"Wait. Is that all this app does?" -- Simon Hershey, Beta Tester

Latest reviews of Primer app for iPhone and iPad

Wish it had Roman Numerals!
I LOVE this app, but was promised Roman numeral, landscape and iPad support soon. Im still waiting for these features and it is hard for me to use without the Roman numerals. UPDATE - Still waiting on my Roman Numerals!
The perfect number app!
This is an extremely useful app to tell you which numbers are prime and composite. Seeing the factors of composite numbers makes it quick and easy to determine what can be multiplied to find any number. The perfect app for anyone who loves numbers!
Very responsive
John has developed a very responsive app for calculating a numbers prime factors. I very much like both the ease of number entry and the handy next prime hint.
Beautiful App
Its the app you didnt know you needed until now!
Wish it had Roman Numerals!
I LOVE this app, but was promised Roman numeral, landscape and iPad support soon. Im still waiting for these features and it is hard for me to use without the Roman numerals
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