Chapter 39 The Goal of Prosperity
Qiao Yu doesn't care what the teachers are thinking. He even has less expectations for little Libaba's math competition now.
Yes, at this time, Qiao Yu had put most of his attention on the study of number theory, especially prime numbers and large prime numbers.
Qiao Yu has his own understanding of mathematics.
He has always believed that mathematics is simply a subject that studies laws.
Whether it is the distribution of prime numbers, divisibility, or congruence, to put it bluntly, they are all rules. He believed that as long as he could find those potential patterns that had not yet been discovered, he would be able to master a method of quickly factoring large prime numbers and even very large prime numbers.
As long as he masters this method, all the wealth in the world will bend for him. It is no exaggeration to say that you can make a lot of money just by collecting protection fees.
Yes, Qiao Yu has thought about it. If he can really solve this puzzle, he will set up a company by then to provide password security services to major companies and institutions in need. If he can really succeed, maybe the richest people who are now affectionately called dad will have the urge to call him Papa Joe.
Qiao Yu is not interested in being a father, but he is really interested in money, and his interest in mathematics has become stronger than ever, especially his interest in numbers.
Yes, not just for prime numbers, but for numbers, or to be more precise, integers. Because Qiao Yu believes that if you want to thoroughly study prime numbers, it is impossible to bypass the relationship between prime numbers and other integers.
For example, the quadratic reciprocity law mentioned in the book, the most basic tool of classical number theory, although it mainly describes the quadratic residue relationship between two odd prime numbers, in Qiao Yu's view, this law also directly involves prime numbers. relationship with other integers.
If Lan Jie knew what Qiao Yu was going through at this time, he would probably be very pleased.
Under his guidance, Qiao Yu actually developed a strong and even intense interest in number theory. This is what Lan Jie hopes to see the most. With Qiao Yu's current talent, it would be a pity not to study number theory.
Of course, there must be some surprises. After all, the content of algebra and number theory is actually too advanced for Qiao Yu's age.
But no matter what, driven by the drive to become the richest man, Qiao Yu's feelings for number theory were too profound before, so that the trace of fear he had before disappeared, and his confidence quickly expanded to unlimited big.
If the good old man asked Qiao Yu about his sense of mathematics at this time, the answer would probably be deep love.
......
"Qiao Yu, why have you been so listless these past two days?" Xia Keke stared at Qiao Yu while eating breakfast and asked.
“Have you ever seen the moon at three o’clock in the morning?” Qiao Yu replied casually, earning a blank stare.
“What are you doing if you don’t sleep in the middle of the night?”
"Of course it's studying, studying makes me happy!"
"Studying in the middle of the night? What are you studying?"
"Mathematics! You are still young and don't know how to learn real mathematics. How happy.”
Qiao Yu said this very seriously. Xia Keke, who knew Qiao Yu very well, could tell that this guy really cared. He couldn't help but curiously asked: "What is real mathematics?"
Hearing this question, Qiao Yu quickly took the last sip of powder and became energetic: "For example, do you know prime numbers? ?" Xia Keke rolled his eyes again: "Nonsense, I'm in the rocket class! I learned prime numbers and composite numbers in the first grade, okay?"
"Then do you know why there are infinitely many prime numbers?" Qiao Yu asked nonchalantly.
Xia Keke frowned and thought carefully. After a while, he shook his head and said, "I remember that the textbook directly said that there are infinite prime numbers. Is this a theorem?"
Qiao Yu said with excitement: "No, no, no, the theorems in mathematics are theorems only after they have been proved. In fact, the proof is very simple. First, assume that there are a finite number of prime numbers, from P1 to Pn, and then construct a new number N, N At once It is equal to the product of all prime numbers plus 1.
Because we assumed that the prime numbers are finite, but if N is divided by any prime number Pi, there will be a remainder of 1. This means that the new number N cannot be divided by any prime number. . So N is either a new prime number or has a prime factor that is different from all other prime numbers, which proves that there are infinitely many prime numbers. This is real mathematics."
Xia Keke curled her lips. Although her grades were indeed good, her math scores could only be said to be average. It was difficult to get such excitement for Qiao Yu, so she decisively changed the subject: "By the way, how did you do in the test yesterday?" Like? They all said the last question in physics was quite difficult. "
"Are you in the rocket class?" Qiao Yu, who was still in a state of excitement, said casually.
"Isn't the last circuit question difficult? Many people have done it wrong!" Xia Keke emphasized angrily.
“Circuit? Oh, that’s the one I forgot to record. Which of the two methods is more energy-efficient? There are only two laws used, one is Joule’s law and the other is Ohm’s law. Can it be called difficult? It just requires a little bit. Convert it.
So the final answer is definitely the second one. After calculation, the newly connected resistance value should be approximately 18.33 ohms. ”
Qiao Yu said with certainty. After all, the test was just completed yesterday, so it would be difficult to forget it.
"I did the right thing, but many people did it wrong!" Xia Keke emphasized again.
“Oh, you’re awesome!” Qiao Yu complimented against his will, but couldn’t help but add: “But this kind of question is difficult, so it’s a bit hard to get into the first class, right? Why does this rocket class not live up to its name? "
It's not that he doesn't have enough emotional intelligence, but after all, Xia Keke has been his follower for many years, so Qiao Yu can't help but criticize him.
The most important thing is that now he no longer needs to pretend and can show off his cards. This thing in junior high school is indeed very simple.
"It's so simple, so you can get full marks?" Xia Keke asked.
"Mathematics, Physics and Chemistry are definitely no problem. The teachers of other subjects will have to deduct some points. After all, it is just a mock test, and the teacher is afraid that I will be proud. But if your Rocket Class is at this level, crushing you should not be a big problem. "Qiao Yu said very honestly.
Xia Keke sneered: "Haha..."
She believed Qiao Yu's words in her heart, and she was very happy, but seeing Qiao Yu's confident look made her She still couldn't help but want to hit this guy.
Obviously her attitude had no impact on Qiao Yu at all.
"Many times it's so helpless. Some people don't work hard and don't know how weak they are. For example, your classmates who find this physics test difficult, I suggest they accept their mediocrity early and be kind to themselves. , don’t force yourself to be so tired, life is not worth it.”
It can be heard from these words that Qiao Yu is a sincere person.
(End of this chapter)