Lin Yan almost left with Zhou Mian, but suddenly remembered that there was still someone waiting for him, and after saying wait a moment, he hurried towards Mr. Huo and Aunt Mei.

"Sorry Grandpa Huo, Aunt Mei, for the long wait."

Seeing Lin Yan running over in such a hurry, Aunt Mei asked him to slow down.

Huo Lao: "I see that you are having a good chat with your classmates and teachers, why did you come here suddenly?"

Lin Yan explained that he was going to attend a lecture and could not go back with them.

Huo Lao: "That's how it is. There's nothing to be sorry about. This kind of lecture is rare. Professor Zhou is interested in inviting you to go, so he must seize this opportunity."

The Huo family didn't have any professors and scientists. They respected and admired this kind of scientific research people.

Lin Yan: "Okay, I will."

"By the way, call your Uncle Huo before you go. He just called. I think you had a good chat with them, so I didn't bother you."

For an additional test today, Lin Yan didn't bring his mobile phone with him, so he immediately called Huo Jin back.

The call will be connected in the next second.

The background sound was a bit noisy, as if at the airport, but he still heard the voice of the child in front of Huo Jin.

"The old man said that you won the first prize. It is excellent. Congratulations."

Lin Yan replied, "Thank you, Uncle Huo."

"Tell Uncle what reward you want, and Uncle will bring it back to you in a few days." Huo Jin has become more and more accustomed to his new identity as uncle.

Lin Yan was puzzled: "How many days?"

Huo Jin: "There is something wrong with the group's overseas branch. I am going on a temporary business trip for a few days."

"So that's how it is. Uncle Huo, pay attention to safety on the road." Lin Yan thought for a while and said with a smile: "As for the reward, treat me to a big meal when Uncle Huo comes back."

Huo Jin also smiled helplessly, which was very satisfying.

Well, babies are easy to raise!

So he is willing to raise it!

When he hung up the phone, Huo Jin never forgot to tell Lin Yan to run in the morning, he was really strict, Xiaolan wouldn't let him steal it!

After Lin Yan explained to Mr. Huo and the others, Zhou Mian took a few people to the lecture theater in another teaching building.

-

Mersenne primes are derived from Mersenne numbers.

The so-called Mersenne number refers to a class of numbers in the form of 2p-1, where the exponent p is a prime number and is often recorded as Mp.

It can be proved by factorization method that if 2n-1 is a prime number, then the exponent n is also a prime number;

Conversely, when n is a prime number, 2n-1 (ie Mp) may not be a prime number.

Most of the first few smaller Mersenne numbers are prime numbers, but the larger the Mersenne number is, the harder it is for Mersenne prime numbers to appear.

目前仅发现51个梅森素数,最大的是M82589933(即282589933-1),有24862048位。

Someone once wrote a calculation program specifically for it, but even the computer couldn't find anything. Zhou's conjecture is the only one that can echo and find the law of the distribution of Mersenne numbers.

If the distribution law of Mersenne numbers is found, it will be of great help to the improvement of scientific research and computers in Huaguo and even the world.

Deciphering Zhou's conjecture has always been the direction of Qingda Research Institute in recent years, and there has been no progress. Some time ago, Mr. Jiang suddenly used mathematical reverse induction to solve Zhou's conjecture. At first, it went smoothly, and finally reached the second step. Entering the stage of no solution again, there is this seminar lecture.

Zhou Mian returned to the auditorium, which was already full, including graduate students from the Department of Mathematics, professors from the graduate school, and interested students.

Seeing Zhou Mian come in with three students wearing Jiahe school uniforms, they were very puzzled. What kind of joke did Jiahe students come to hear Zhou's guess?

A few of them, the teachers and professors who participated in the prize-giving competition recognized that the three of them had told the truth, and everyone realized that one of them had solved but not all of the last two questions posed by Mr. Jiang. people.

And one of them is Jiang's grandson, no wonder Zhou Mian brought him here, but they are so young, can they understand?

Of course, these are not important, the most important thing is the speech of Mr. Jiang below.

"The mathematical induction method assumes that it is true when n=k, but it cannot be deduced that it is true when n=k+1. However, using the reverse induction method to assume that it is true when n=k+1 is true, it can be deduced that it is true when n=k. Zhou's guess... ..."

-

Professor Jiang, with gray hair and glasses, stood on the stage and talked about the important results of this research. The audience applauded continuously. For those who understand it, it is very exciting, but it is very boring for those who do not understand it.

For example, Jiang Hang and Jiang Yue, today's lecture has touched on his blind spots of knowledge, and it was extremely difficult to understand. The two of them couldn't help but look at Lin Yan, who was fascinated by what he was listening to.

The two of them looked at each other, everything was kept in silence, this is so understandable, he is so perverted!

When it came to the questioning session, many professors raised doubts about the reverse induction method, and Mr. Jiang answered them one by one.

After all, no one in the world has cracked the speculation, and the current doubts are only for the advancement of follow-up research.

After the questioning session in the front row was over, Mr. Jiang suddenly looked at the last row of the lecture theater, "I just saw Professor Zhou bring a few young students in, and I think the student in the middle is listening very carefully, do you have any insights? "

When the others heard it, they all smiled. It would be nice if someone at this age could understand a small part of it. After all, the graduate students in the mathematics department in the classroom were struggling to listen.

They all thought that Mr. Jiang was making fun of Gao Gao. As for the G middle school student, that student probably won't be able to say anything for a while.

And the student in the middle was none other than Lin Yan!

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