20/20 Primes and Factor Trees
The tutor in your pocket.
$0.99
9.0for iPhone, iPad
Age Rating
20/20 Primes and Factor Trees Screenshots
About 20/20 Primes and Factor Trees
A power learning aid combines 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.
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.
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What's New in the Latest Version 9.0
Last updated on Apr 9, 2024
Old Versions
This version contains minor bug fixes.
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Version History
9.0
Apr 9, 2024
This version contains minor bug fixes.
8.9
Mar 29, 2024
iOS 17 compatibility and minor bug fixes.
8.8
Mar 26, 2024
iOS 17 compatibility and minor bug fixes.
8.7
Dec 11, 2022
This version has minor bug fixes.
8.6
Sep 2, 2022
This version contains minor bug fixes and enhancements.
8.5
Jul 26, 2022
This version contains minor bug fixes.
8.4
Mar 24, 2022
This version has minor improvements and bug fixes.
8.3
Mar 1, 2022
Minor enhancements and bug fixes.
8.2
Jan 11, 2022
New user interface and bug fixes.
8.1
Oct 10, 2021
Minor user interface bug fixes.
8.0
Oct 6, 2021
iOS 15 compatibility and minor bug fixes.
7.9
Sep 5, 2021
Minor bug fixes.
7.8
Jan 22, 2020
Minor bug fixes and enhancements.
7.7
Jan 14, 2020
Minor bug fixes and app streamlining. Secondary modules are moving to free apps for you to GET if you wish.
7.6
Oct 28, 2019
New box or grid multiplication. Minor bug fixes.
7.5
Oct 23, 2019
Lattice multiplication module. Minor bug fixes.
7.4
Sep 26, 2019
Minor bug fixes.
7.3
Sep 19, 2019
iOS 13 and iPadOS compatibility.
7.2
Jan 19, 2019
Major revision with streamlined user interface. Minor bug fixes.
7.1
Sep 17, 2018
iOS 12 compatibility and minor bug fixes.
7.0
Jul 25, 2018
Now a universal app for iPad and iPhone. Bug zapping.
6.9
Jun 14, 2018
New fraction multiplication and division modules. Bug zapping.
6.8
May 28, 2018
Bug fixes.
6.7
May 26, 2018
Bug fixes.
6.6
May 18, 2018
Modern fraction modules for addition and subtraction. Minor bug fixes.
20/20 Primes and Factor Trees FAQ
Click here to learn how to download 20/20 Primes and Factor Trees in restricted country or region.
Check the following list to see the minimum requirements of 20/20 Primes and Factor Trees.
iPhone
Requires iOS 16.0 or later.
iPad
Requires iPadOS 16.0 or later.
20/20 Primes and Factor Trees supports English
