A power learning aid combining Coaching Calculators and Guides to help students master prime factorization, LCM and GCD.

Prime factorization :

- Prime factorization by factor trees

LCM or Least Common Multiple :

- LCM by prime factorization

- LCM by listing multiples

GCD or Greatest Common Divisor :

- GCD by prime factorization

- GCD by listing divisors

You develop understanding quickly as you work with the calculator and see each step of the process in detail.

What’s New

Version 7.8

Minor bug fixes and enhancements.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

SarahNicholson ,

Love this App, but why IOS6?

I am a high school math teacher, and our school is an "ischool", where the students each get to check out an iPod for educational purposes. I absolutely love this app to help my students learn to simplify square roots. But I've recently discovered that some of them cannot update to IOS6 because some of the devices are a bit too old. I am glad it is updated for the new IOS, but SO bummed that it doesn't work for earlier IOS versions. Can that be fixed?

Stac567 ,

Helped with pre- algebra

This was a great help today with pre-algebra work. I'm going to look into getting the whole MathFlair app. Great resource for jr and sr high math classes.

Lefty12345 ,

Pretty good

This is okay, but it would be better if it included sample problems which you could do on the screen. It is very basic as to what it covers, but it is easy to understand and might help students.


Walter Kissach
11.4 MB

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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