Hello, everyone! In this course I invite you to the mysterious world of prime numbers.
You will learn from the basics on prime numbers to advanced topics.
You will also learn practical applications of prime numbers to cryptography.
Some of you may think mathematics is a training of computational skill.
It's true, but what I would like to emphasize is another aspect of mathematics in this course.
Mathematics is science.
Through this course, I would like to tell you many things about prime numbers are still unknown.
And many mathematicians have been trying to discover new theories, even today.
It would be great if you feel the atmosphere of science and find it interesting.
When you feel some of the topics are difficult, don't worry.
You should not try to understand everything.
Instead, please experiment with a pen and paper by yourself.
Then you will be a friend of prime numbers.
I hope you enjoy this course and become fond of prime numbers.
