Scroll through the numbers from 1 to 1,000,000,000,000. 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

What’s New

Version 2.5

Updates for iOS 14. Now able to view numbers from 1 to 1,000,000,000,000.

App Privacy

The developer, Paul Hangas, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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