Primes and Prime Factors App Downloads & RevenuePrimes and Prime Factors App · App Store
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperHenning Poulsen
CategoryEducation
PriceFree
Released
Rating★ 4.3 (6)
Version1.3.2
Age rating4+
First seen by us
24 Oct 2026
24 Oct 2026Primes and Prime Factors App update history & changes
Last change · 3 events since 17 Jan 2014Full timeline ↓Full timeline · 2 events in the last 12 months
- 🆕Primes and Prime Factors App first spotted by AppInsiderIndia (found via developer)
- 🆕Primes and Prime Factors App released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.3 ★
6 ratings
Measured
Primes and Prime Factors App on the App Store
App details
App ID
796307644
Publisher
Henning Poulsen
On the store since
Jan 2014
12 years on the store
Minimum OS
iOS 8.0+
iPhone 4s and later
Devices
iPhone · iPad
Content rating
4+
Languages
34
AR CA HR CS DA NL EN FO FI FR DE EL …
Size
2 MB
Also listed in
Utilities
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.3 ★
6 ratings
Measured
Ratings
6
Measured
About Primes and Prime Factors App
Primes, Prime Factors
About
This app lets you
• check numbers to see if they are prime numbers,
• find next prime,
• find primes within an interval (range), and
• determining prime factors.
The input numbers need be between 0 and 9,223,372,036,854,775,807, which is 2^63-1, or approximately 9.223·10^18. Just keep numbers less than 19 digits; a validation mechanism prevents illegal input.
Primes
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. Examples: 2, 3, 5, 7, 11, 13, 17. 2 is the only even prime.
When finding primes in an interval, duration is shown, so the app may be used for benchmarking as well.
Prime factor
A natural number greater than 1 that is not a prime number is called a composite number. Enter any number into the Factor field, to get its prime factors. If the number is a prime, then it has only one factor, itself.
Examples:
•Entering 6, gives 2 3.
•Entering 12, gives 2 2 3.
•Entering 100, gives 2 2 5 5.
Since very big numbers may consist of many small primes, prime factorization of large numbers may be very quick. Try it out.
Duration is shown.
Localization/Translation
I have tried to translate this app into every language imaginable, but I have used an online translation service for most of them, and as you know, words may have different meanings.
Please do not hesitate to email me, if you have any corrections to the translations, or just any tips or criticism to this app. I will read every mail — if it is written in English :)
About
This app lets you
• check numbers to see if they are prime numbers,
• find next prime,
• find primes within an interval (range), and
• determining prime factors.
The input numbers need be between 0 and 9,223,372,036,854,775,807, which is 2^63-1, or approximately 9.223·10^18. Just keep numbers less than 19 digits; a validation mechanism prevents illegal input.
Primes
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. Examples: 2, 3, 5, 7, 11, 13, 17. 2 is the only even prime.
When finding primes in an interval, duration is shown, so the app may be used for benchmarking as well.
Prime factor
A natural number greater than 1 that is not a prime number is called a composite number. Enter any number into the Factor field, to get its prime factors. If the number is a prime, then it has only one factor, itself.
Examples:
•Entering 6, gives 2 3.
•Entering 12, gives 2 2 3.
•Entering 100, gives 2 2 5 5.
Since very big numbers may consist of many small primes, prime factorization of large numbers may be very quick. Try it out.
Duration is shown.
Localization/Translation
I have tried to translate this app into every language imaginable, but I have used an online translation service for most of them, and as you know, words may have different meanings.
Please do not hesitate to email me, if you have any corrections to the translations, or just any tips or criticism to this app. I will read every mail — if it is written in English :)
Latest updates
1.3.2
Bugfixes
