Prime Number Judgment

Hirotaka Takayama

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About this app

This app is a simple and reliable tool for checking prime numbers. It is free!

There are three modes available:
- Prime Number Check: Check if a number is a prime.
- Neighboring Prime Search: Display neighboring prime numbers based on the input.
- Date-Based Search: Find prime numbers related to specified dates.

Its Features:
- Free
- Checks if a number is prime
- Allowed up to 18-digit input
- Search neighboring prime numbers based on input
- Search prime numbers from a specified date
- A mathematics app
- Requires no specific access privileges
- Does not require internet access
- High-quality and reliable
- User-friendly design

It is free and requires no special access privileges.
With Prime Number Check, you can easily check if a number is prime and see neighboring prime numbers from your input. You can also discover prime numbers from a specified date.
This app is ideal for anyone seeking a quick and easy way to check prime numbers, featuring some interesting additional features.
It is a high-quality and reliable math app that does not require an internet connection.
Prime Number Judgment is also designed to be user-friendly and easy to use.

What’s new

In the "Date-Based Search" feature, the app now also checks for prime numbers using patterns with a leading zero when the month and/or day is a single digit. For example, "2023/9/9" was judged as having no prime number, but it is now recognized that "202309" is a prime number.