Obviously, anyone with a little mathematical foundation will see that these numbers are not prime numbers, and Ye Ming must also be in a hurry to get rid of us, so when he saw that there were no prime numbers in the code of this room, he jumped down without any temptation, and then touched the mechanism inside, and was sprayed by corrosive liquid.

"What's wrong?" Seeing me muttering here, Shu Muhua also leaned over and asked.

"Just look at the numbers." I glanced at Shu Muhua and said.

He leaned over to check the room code, and then got up, also puzzled, "There are no prime numbers in this, how can there be a mechanism?" ”

"If the law is not broken, then the law we speculate is fundamentally wrong." I thought about it and said.

"But we've passed through a dozen rooms safely, right? There must be something we didn't think about. After Shu Muhua finished speaking, he squatted down and thought hard.

"Don't be idle, why don't we test the other rooms first?" The fat man said on the side.

"That's fine, let's see how those rooms are going first." With that, I went to another room.

The three of us tested the remaining rooms separately, and finally determined that one room was safe, I checked the code of the room, and none of them contained prime numbers, indicating that the laws of our conjecture were still valid, but it still couldn't explain why the room where Ye Ming was killed had a mechanism.

Shu Muhua still sat there thinking about it, I guess he couldn't think of anything, so he walked over and said to him: "Uncle, let's go first, write down the code of the room in question, and then analyze the law when there are more statistics." ”

Shu Muhua shook his head, sighed, and said, "That's all it takes." ”

We entered the next safe room, and finally tested that one room was safe, the fat man pulled his shoes back, and then he was about to go down, I grabbed him and said, "Fat brother, let me come, I can't always let you take risks alone, we are brothers!" ”

The fat man was stunned for a moment, turned his head and smiled, then patted me on the shoulder and said, "Good brother! If you have this heart, my brother will be happy, don't hurt my brother's feelings because of trivial things, this time I will come first, and I will replace you next time. ”

The fat man didn't wait for me to say anything, he turned his head and jumped down, I listened to the fat man's words, my heart was agitated, although I and the fat man have not known each other for a long time, but this brotherhood is getting deeper and deeper, at this time, I thought of Ye Chen again, I don't know if he is still alive, and if there is a chance to meet again.

"It's okay, come here." The fat man shouted inside, and I came back to my senses, answered it, and jumped out of the hole.

We walked through another 10 rooms, but it took a lot more time than usual, because many of the room codes didn't contain prime numbers, but there were pitfalls.

We all stopped, Shu Muhua divided the dry food in the backpack among everyone, he still had a bottle of unfinished water there, Xie Xinyi also had a bottle there, I had nothing with the fat man, perhaps, this was our last meal.

"I didn't expect it to be such a way to die in the end." The fat man took a bite of the dry food and smiled miserably.

"Haha, Boss Luo, are you regretting not marrying a daughter-in-law again?" Xie Xinyi joked on the side, it seems that she is open-minded, and she is so optimistic at all times.

The fat man glanced at Xie Xinyi, and said a little jokingly: "Big beauty, don't worry about my business, do you think I can't see it?" Are you interesting to my brother? If you don't confess again, I don't think you have a chance. ”

After hearing this, Xie Xinyi's face flushed with shame, and she took a sip and said: "Dead fatty, don't talk nonsense, people have girlfriends, besides, he is my eldest nephew, and he is a child." ”

"What's wrong with having a girlfriend? I'm not married, and besides, Xia Qi doesn't know if she can survive yet. The fat man said.

The fat man mentioned Xia Qi, I was shocked, I don't know how she is now, where she is trapped, to speak from the heart, I have always been grateful to Xia Qi, after all, she has saved my life, but I really shouldn't involve her in my affairs again, if I can get out of danger this time, I still leave her and let her live an ordinary life.

I know that what the fat man said over there was all for me, since the deep sea rescued Xie Xinyi, I always felt that she was a little weird to me, hey! The girl's mind should not be guessed, I haven't found out a thing or two yet, so it's better not to be bound by feelings, so I deliberately didn't join their conversation.

Shu Muhua wrote down the codes of the rooms he had just walked through in his notebook, then drew the map under the road again, and finally, he wrote down the codes of the rooms without prime numbers with mechanisms, and then analyzed.

"How? Did you find anything? I leaned over and asked.

"27,85,125,221,231...."Shu Muhua wrote a bunch of numbers on a piece of paper, and then said to me, "What is so special about these numbers?" ”

"Where did this number come from?" I asked, a little confused.

"These are the ones that are all even, but they are found in the code of the organs, and I'm analyzing how they relate to each other." Shu Muhua said with a frown.

"I don't think they're anything special, huh? It's just a general number. I said with a wry smile.

"If you look into it again, there will definitely be a pattern."

“27？ Three-nine-twenty-seven, hehe, this is the multiplication formula we memorized when we were children. I said with a smile.

"Multiplication?" After hearing this, Shu Muhua frowned, and then he picked up the pen and wrote quickly on the paper.

"3x3x3=27,17x5=85,5x5x5=125,13x17=221,3x7x11=231" Shu Muhua finished writing, with an ecstatic expression on his face.

I took a look at it, and then I understood it at once, and then I said happily: "These numbers are all multiplied by prime numbers, which explains why in the beginning, the room containing prime numbers also had a mechanism, because it is obtained by multiplying the prime number itself by one." ”

"Yes, that's it, as long as there is a room with a prime factor, there are mechanisms." Shu Muhua said affirmatively.

"Okay, then let's speed up and get out of here." I was refreshed, and I stood up.

Shu Muhua grabbed me, and then said, "Wait a minute, and then study this roadmap and room code, we can't go blindly anymore, there must be a pattern to follow." ”

"Didn't you find out the pattern of this code? Is there any other pattern? Confused, I crouched down again to study the code.

At this time, Xie Xinyi also came over, "Show me, maybe you can find something." Xie Xinyi said with a smile.

"Yes, there is a lot of power in numbers." Shu Muhua smiled and handed the notebook to Xie Xinyi.

Xie Xinyi took the notebook and looked at it, then said with a smile: "Hey! Do you think these numbers look like coordinates? ”

"Coordinates?" Shu Muhua and I said at the same time, and then glanced at each other, "Oh, why didn't I think of it, this is a three-dimensional cube, three numbers, and it is really possible to represent three-dimensional coordinates." I slapped my head and said with a sudden realization.

"Haha, I said it casually, are you really serious?" Xie Xinyi said with a smile.

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