Sosu der
~素数クイズ~
Free · Designed for iPad. Not verified for macOS.
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)
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Improved app stability and updated the advertising system.
Added access to the Privacy Policy from the Settings screen.
The developer, Hirobumi Onishi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Hirobumi Onishi
- Size
- 146.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Hirobumi Onishi
