Prime Factors

Name: Prime Factors
Price: 0.99 USD
Rating: 3.9 (24 reviews)
Author: Paul Hangas

Education

$0.99 · Designed for iPad

24 Ratings
Ages

4+
Years
Category

Education
Developer

Paul Hangas
Language

EN
English
Size

1.1
MB

View all numbers from 1 to 1,000,000,000,000. Prime numbers shown with a red circle. Tap a number to see its Prime Factors. Jump directly to a number with the search field. • Prime Numbers are marked with a red circle • Prime Factors can be viewed by tapping on a number • Pinch and Zoom to change the number of columns

Ratings & Reviews

3.9

out of 5

24 Ratings

The best for me
03/06/2025

Ryansgutters6
Edit: this app quite working a few months ago after ios18 updates. Still shows primes but doesn’t show factors of other numbers when you click on them. Really loved this app before. This app is perfect for me, I’m always jotting numbers down for patterns and god knows what. Big problem tho. It quite working after ios18 update. Please fix asap.
The best for me
03/06/2025

Ryansgutters6

Edit: this app quite working a few months ago after ios18 updates. Still shows primes but doesn’t show factors of other numbers when you click on them. Really loved this app before. This app is perfect for me, I’m always jotting numbers down for patterns and god knows what. Big problem tho. It quite working after ios18 update. Please fix asap.
Beautiful app, so happy it’s working again
09/06/2025

dsmarley
This is a beautiful, elegant, and useful app, one of my favorite math apps to use. I was very sad when it stopped working sometime last year, but now it’s been updated and it’s working again. I haven’t found another prime factorization app anywhere near as satisfying to use, so I’m very happy it’s back.
Beautiful app, so happy it’s working again
09/06/2025

dsmarley

This is a beautiful, elegant, and useful app, one of my favorite math apps to use. I was very sad when it stopped working sometime last year, but now it’s been updated and it’s working again. I haven’t found another prime factorization app anywhere near as satisfying to use, so I’m very happy it’s back.
Great app! I use it every day!
02/22/2017

Tem Noon
When I write in my journal, I check every day how many days old I am, and put the prime factors in my journal. This app is perfect for that.
Great app! I use it every day!
02/22/2017

Tem Noon

When I write in my journal, I check every day how many days old I am, and put the prime factors in my journal. This app is perfect for that.
I would rather pay to see no ads
01/10/2019

Rambo8649
The app works, but the ads are very, very annoying. It’s a combination of outside ads and ads for the developers own apps. I would rather pay for the app than see the ads. If I didn’t have to see the ads, I would rate this app four or five stars. I am deleting this app, I can’t handle the ads.
I would rather pay to see no ads
01/10/2019

Rambo8649

The app works, but the ads are very, very annoying. It’s a combination of outside ads and ads for the developers own apps. I would rather pay for the app than see the ads. If I didn’t have to see the ads, I would rate this app four or five stars. I am deleting this app, I can’t handle the ads.