Tool:
Touch Integers ℤ (+  × ÷) 
Screenshot:

Go to: 
https://play.google.com/store/apps/details
(opens a new window)

Description: 
The fundamental theorem of arithmetic, also known as the unique factorization theorem or the uniqueprimefactorization theorem, states that every integer greater than 1 either is prime itself or is the product of prime numbers, and that this product is unique, up to the order of the factors. With this app you can add, subtract, multiply and divide (integer division: Division with remainder, not available) of any integer of any sign. 
Technology Type: 
Android  
Guide: 
User's Guide
(opens a new window)

Author: 
Maurici Carbó 
Language: 
English  
Cost: 
Does not require payment for use 

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Courses: 
Kindergarten 
Operations with numbers, Place value 
 Math 1 
Operations with numbers, Place value 
 Math 2 
Operations with numbers, Place value 
 Math 3 
Operations with numbers, Number sense 
 Math 4 
Operations with numbers, Number sense, Number theory, Integers 
 Math 5 
Operations with numbers, Number sense, Number theory, Integers 
 Math 6 
Operations with numbers, Number sense, Number theory, Integers 
 Math 7 
Operations with numbers, Number sense, Number theory 
 Algebra 
Number Systems, Integer Operations 
