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PrimalityTest

Build your number adding the multiples of 1,2,3,4,5,6,7,8,9 or multiply for 10

Build your number adding the multiples of 1,2,3,4,5,6,7,8,9 or multiply for 10

PrimalityTest

by Alberto Ragagnin
PrimalityTest
PrimalityTest

What is it about?

Build your number adding the multiples of 1,2,3,4,5,6,7,8,9 or multiply for 10

PrimalityTest

App Details

Version
1.9.5
Rating
(1)
Size
2Mb
Genre
Education Reference
Last updated
August 14, 2020
Release date
August 9, 2020
More info

App Store Description

Build your number adding the multiples of 1,2,3,4,5,6,7,8,9 or multiply for 10
so you can build your number and then check.

For example If I want text : 99499 I will type
+9 then x10 results 90
then +9 results 99 then x10 results 990 then +4 results 994 then x10
results 9940 then +9 results 9949 then x10 results 99490 then +9
results 99499. Leave in the feedback if you would prefer the standard input!
I will change everything in the next update!

Bug fixed with version next 1.0 :

+ ver. 1.1 fixed the the false positive bug "4 is prime" ;
+ ver.1.1.1 fixed the bug that crashed the app, added an upper bound for big integer;
+ added the button N/M that allow two different ways of input : N is normal like a standard calculator, M is incremental.
+ 1.2 and 1.3 minor bugs fixed
+ 1.4. overflow for big integer typed with normal mode fixed.
+ 1.5 fixed the crashing bug after "pressing any button after primality test" .

About icon: the picture of the face took from a statue,
that represents Eratosthenes.  
An ancient mathematician and philosopher
tha made the first procedure to determinate primes from 0 to 100.
(look the Sieve of Eratosthenes ).

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