Prime Factors

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