Is the Product of Primes Significant in Number Theory?

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Discussion Overview

The discussion revolves around the significance of the product of primes in number theory, particularly focusing on the primorial function and its relation to limits involving sums of primes. Participants explore various mathematical properties and conjectures related to primes, including comparisons to Fibonacci numbers and Mersenne numbers.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • Some participants discuss the series of products of primes and question their relevance in number theory.
  • A participant identifies the function related to the product of primes as the primorial function.
  • There is a query about the limit of a series involving sums of primes, with a participant providing a rewritten form of the limit for further exploration.
  • Another participant proposes a limit involving the average of primes, suggesting it approaches infinity.
  • Some participants debate the definition of prime numbers, particularly the status of 1 as a prime, with differing opinions on the accepted definition.
  • One participant suggests that Mersenne numbers, defined as \(2^p - 1\), do not always yield prime results, despite some being prime.
  • Another participant presents an equation involving the product of primes and raises questions about its validity and implications.
  • There are discussions about the properties of products of primes and their relationship to surrounding prime numbers.

Areas of Agreement / Disagreement

Participants express differing views on the definition of prime numbers, particularly regarding the inclusion of 1. There is no consensus on the validity of certain mathematical claims or the significance of the discussed series, indicating ongoing debate and exploration.

Contextual Notes

Some mathematical claims and definitions are presented without proof or consensus, and the discussion includes unresolved questions about the limits and properties of primes.

  • #31
Originally posted by suyver

(uip = un-included prime in serie)

Yes. I'll check. Sorry... (only one square is aloud).

No prime is aloud to have a negative conjugate.

.......uip.(pp)...prime or square
2......= 2...+-1...1 | 3
3......= 3...+-2...1 | 5
2*2......= 4...+-1...3 | 5
2*3......= 6...+-1...5 | 7
2*3*3......= 18...+-1...17 | 19
3*3......= 9...+-2...7 | 11
2*2*3......= 12...+-1...11 | 13
2*5......= 10...+-3...7 | 13
3*5......= 15...+-2...13 | 17
3*5*7......= 105...+-2...103 | 107
2*3*7......= 42...+-5...37 | 47
5*7*7......= 245...+-6...239 | 251
3*7*7......= 147...+-10...137 | 157
2*7*7......= 98...+-15...83 | 113
2*5*7......= 70...+-3...67 | 73
5*5*7 .....= 175...+-6..169(square) | 181
5*7......= 35...+-6...29 | 41
2*3*5*7*11...= 2310..+-1...2309 | 2311
The numbers in the serie must be a prime (3 5 7 11 are four numbers)
2*5*11......= 110...+-21...89 | 131
5*7*11......= 385...+-6...379 | 391

3*7*11......= 231...+-10...17*13(?) | 241
(maybe this has got something to do with that diff (3,7) = diff (7,11)
is not a prime, and that diff(x,y) cannot be a non-prime twice in a row?)

3*5*11......= 165...+-14...151 | 179
11*5.....= 55...+-42...13 | 97


Damit... Who cares if it works anyway: the permutations becomes to many.
 
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  • #32
Originally posted by suyver

In the middle of two conjugative primes is a third number oftenly divideable
with 6.

Can two such queries have the same factor-sum if the sum is a prime?

2*2 = 4 | 2 + 2 = 4

2*3 = 6 | 2 + 3 = 5

2*2*3 = 12 | 2 + 2 + 3 = 7

2*3*3 = 18 | 2 + 3 + 3 = 8

2*3*5 = 30 | 2 + 3 + 5 = 10

2*3*7 = 42 | 2 + 7 + 3 = 12

2*2*3*5 = 60 | 2 + 2 + 3 + 5 = 12
 
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  • #33
  • #34
Originally posted by suyver
Have you read this thread? You might find some of the contents interesting...


No, i have not read his thread. What does he mean?

But if this was true, you could find a lot higher primes a lot easier.
 
  • #35
No: this is indeed a function that generates all the primes. But it is a function with 26 parameters that can vary... Computationally very intensive!
 
  • #36
Originally posted by suyver

You mean that the answer of my question is: No?

How can you get all primes through this?

Or did you mean that his function generates all primes?

I'm comfused...

Good night!
 
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  • #37
In that other thread that I linked to, there is (about halfway through) a short discussion about this monster. That is a set that yields every prime number, as well as that it only yields prime numbers. However, there is one catch: you have to restrict its domain to parameters that give positive values (i.e. ignore all results <0).

I suggest that you spend some time reading that other thread. There is also a rough proof of the fact that it is fundamentally impossible to construct a nonconstant polynomial in a single variable over the integers that will generate all primes...
 
  • #38
The first n factors...

Originally posted by suyver

Does the x number of factors to form the n first numbers follow a maclaurin serie?

1 | 1f
2 | 2f
3 | 3f
4 | 5f
5 | 6f
6 | 8f etc.

You must agree in that it's a good question anyway...
 
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  • #39
p*p

"A multiple between two primes is always right in the middle of two primes."

Has that been proven, that the product of two primes is always the average of two primes?

Are all numbers > 2 the average of two primes?
 

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