Scroll through the numbers from 1 to 100,000,000,000. See which numbers are Prime and view the Prime Factors of the Composite numbers. Jump directly to a number to see if your phone number or social security number is Prime.
• 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
Updates for iOS 10
Ratings and Reviews
Great app! I use it every day!
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.
This app is really good! I love how far up it can go. It can go up to over 100 Billion!
Best Prime Number App
This is just what I was looking for. It has a TON of numbers in the list and it is very visually appealing. It runs smoothly and the search feature is good too. Best of all, its free. One thing that would be nice is if it could also factorialize numbers as well as give prime factors. All in all, it is a great app.
With Family Sharing set up, up to six family members can use this app.