/sci/ - Science & Math » Thread #10942005

806KiB, 1000x1024, prime.png

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Anonymous Wed 04 Sep 02:52:44 2019 No.10942005 View Reply Original Report

Quoted By: >>10942072 >>10942234 >>10942261 >>10942262 >>10942394 >>10942477 >>10943414

You should be able to solve this, /sci/

Anonymous

Anonymous Wed 04 Sep 2019 02:54:14 No.10942009 Report

Quoted By:

x=0
proved
bazinga
zimbabwe
bazorple
/thread

Anonymous

Anonymous Wed 04 Sep 2019 03:14:31 No.10942072 Report

Quoted By: >>10942080

>>10942005
i wish my lab had lab coats like kurisu's

Anonymous

Anonymous Wed 04 Sep 2019 03:15:57 No.10942080 Report

Quoted By:

>>10942072
It's not actually a lab coat. It's a doctor's coat.

Anonymous

Anonymous Wed 04 Sep 2019 04:04:25 No.10942234 Report

Quoted By: >>10942238 >>10942242

>>10942005
Sure i'll solve it but can you just clarify a couple of things first?

What does that symbol mean?
What is n and why are you talking about n and m? what is m?

If n is 0 then weird symbol of n is 0 and if m is 1 then weird symbol of m is 0

there solved now fuck off with your dumb symbols fucking scientists piss me off sometimes

Anonymous

Anonymous Wed 04 Sep 2019 04:05:26 No.10942238 Report

Quoted By:

>>10942234
Thanks for the 4.

Anonymous

Anonymous Wed 04 Sep 2019 04:06:44 No.10942242 Report

Quoted By: >>10942250

>>10942234
have sex

Anonymous

Anonymous Wed 04 Sep 2019 04:09:55 No.10942250 Report

Quoted By:

>>10942242
Thanks for the timestamp 4.

Anonymous

Anonymous Wed 04 Sep 2019 04:14:07 No.10942261 Report

Quoted By: >>10943363

>>10942005
>>>/a/

Anonymous

Anonymous Wed 04 Sep 2019 04:14:39 No.10942262 Report

Quoted By: >>10942326

>>10942005
Find an equation ?(x) such that for each natural number x, ?(x) is prime, and such that there is no prime number not within the range of ?(x).

>You should be able to solve this, /sci/

Anonymous

Anonymous Wed 04 Sep 2019 04:41:51 No.10942326 Report

Quoted By: >>10942339 >>10942398

>>10942262
((n-1)!+1) mod n == 0

Anonymous

Anonymous Wed 04 Sep 2019 04:49:53 No.10942339 Report

Quoted By: >>10942363

>>10942326
Shit, I discovered that too.

Anonymous

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Anonymous Wed 04 Sep 2019 05:04:17 No.10942363 Report

Quoted By:

>>10942339

Anonymous

Anonymous Wed 04 Sep 2019 05:20:24 No.10942394 Report

Quoted By:

>>10942005
If n is odd, phi(2n) = phi(2)phi(n) = phi(n)
That's all I got

Anonymous

Anonymous Wed 04 Sep 2019 05:24:01 No.10942398 Report

Quoted By: >>10942399 >>10942403 >>10942474

>>10942326
>7 mod 4 == 0
Based retard

Anonymous

Anonymous Wed 04 Sep 2019 05:24:29 No.10942399 Report

Quoted By: >>10942562

>>10942398
7 mod 4 is not 0...

Anonymous

Anonymous Wed 04 Sep 2019 05:25:40 No.10942403 Report

Quoted By: >>10942476

>>10942398
== means 'is it equal to?'
== is a question operator not a declarative operator. Learn computer science dude.

The prime testing equation ((n-1)!+1) mod n == 0 is already established as a probably accurate equation it was made a long time ago

Anonymous

Anonymous Wed 04 Sep 2019 05:52:19 No.10942474 Report

Quoted By: >>10942475

>>10942398
the challenge with primes is finding a way to find primes quickly that are more than 24 million digits in their length because it would be useful for encryption and quantum science

Anonymous

Anonymous Wed 04 Sep 2019 05:53:38 No.10942475 Report

Quoted By:

>>10942474
thanks for the 4 by the way...
also the quantum science usefulness probably comes from having a solid understanding

Anonymous

Anonymous Wed 04 Sep 2019 05:54:06 No.10942476 Report

Quoted By: >>10942480

>>10942403
The reason it works is because the factorization of n! necessarily includes all factors beneath n+1, and adding 1 to it must necessarily produce a number that is coprime to the product. I guess I don't have a ready explanation for why that new number will always have n+1 as a factor, but it certainly can't have any primes less than n+1 as factors.

Anonymous

Anonymous Wed 04 Sep 2019 05:54:35 No.10942477 Report

Quoted By: >>10942891

>>10942005
>the number of integers
Did you mean the number of naturals? There would be an infinite amount if you’re using integers.

Anonymous

Anonymous Wed 04 Sep 2019 05:58:14 No.10942480 Report

Quoted By: >>10942485

>>10942476
Exactly, they are all scales

4 is double 2
6 is triple 2

like patterns

2 = |_|_|
3 = |_|_|_|
4 = |_|_|_|_| which is just |_|_| twice
a prime is a new unique pattern

Anonymous

Anonymous Wed 04 Sep 2019 06:02:51 No.10942485 Report

Quoted By:

>>10942480
The repetition of patterns creates a factory of old patterns which makes new patterns more rare as you add more repetitions

> 2, every even number can be divided by 2 to equal another even number
> 3 every odd number whose digits add to 3 can be divided by 3 to equal another multiple of 3
> 5 every number with '5' as the rightmost digit can be divided by 5 to equal an integer number > 1
each new prime adds a new factory and that is what really defines all the primes but abstracting that concept into something useful is harder

Anonymous

Anonymous Wed 04 Sep 2019 06:46:00 No.10942553 Report

Quoted By: >>10942557

phi(n) = 10 only has one solution n=11

Anonymous

Anonymous Wed 04 Sep 2019 06:48:41 No.10942557 Report

Quoted By:

>>10942553
22

Anonymous

Anonymous Wed 04 Sep 2019 06:51:46 No.10942562 Report

Quoted By:

>>10942399
It is now after he defined it

Anonymous

Anonymous Wed 04 Sep 2019 10:36:42 No.10942891 Report

Quoted By: >>10942896 >>10943187

>>10942477
came here to post this, OP's definition for ? makes no sense, it would be infinite everywhere except ?(0)= 0

Anonymous

Anonymous Wed 04 Sep 2019 10:40:28 No.10942896 Report

Quoted By:

>>10942891
also, based op for posting an open problem

Anonymous

Anonymous Wed 04 Sep 2019 13:23:57 No.10943187 Report

Quoted By: >>10943368

>>10942891
and the usual definition uses less than or equal, not less than

Anonymous

Anonymous Wed 04 Sep 2019 14:35:53 No.10943313 Report

Quoted By:

what's a coprime?

Anonymous

Anonymous Wed 04 Sep 2019 15:13:10 No.10943363 Report

Quoted By:

>>10942261
every board is a anime board

Anonymous

Anonymous Wed 04 Sep 2019 15:14:52 No.10943368 Report

Quoted By:

>>10943187
that part doesn't really matter for n?1, since no other number is coprime with itself

Anonymous

Anonymous Wed 04 Sep 2019 15:45:44 No.10943414 Report

Quoted By:

>>10942005
Yeah good luck trying to solve this one fags.
It's an open problem.

https://en.wikipedia.org/wiki/Carmichael%27s_totient_function_conjecture

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