
Sosu der
~素数クイズ~
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About
This app is a quiz application that determines whether a number is prime or composite and swipes the correct answer.
A prime number is a natural number greater than 1 that is not divisible by any other number except 1 and the number itself. For example, 2, 3, 5, and 7 are single-digit prime numbers.
Composite numbers (composite numbers) are natural numbers greater than 1 that are not prime and are represented by the product of smaller natural numbers (e.g., 4 = 2 x 2, 6 = 2 x 3).
Through this app, you can test your judgment and reflexes while having fun learning these mathematical concepts.
... How many two-digit, three-digit, and four-digit prime numbers do you know?
Translated with www.DeepL.com/Translator (free version)
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What's New in Sosu der
1.3
August 2, 2026
Improved app stability and updated the advertising system. Added access to the Privacy Policy from the Settings screen.



