# Talk:Prime number

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Prime number was a good articles nominee, but did not meet the good article criteria at the time. There are suggestions below for improving the article. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake.
 September 19, 2006 Good article nominee Not listed

## Deleted

I struck my own comment as it was useless (due to simple sleight of hand of ref) —Preceding unsigned comment added by Billymac00 (talkcontribs)

## Semi-protected edit request on 2 June 2016

Number of prime numbers

Prime Numbers Set Definition

Definition of prime numbers can be written all over as this: Prime numbers does not have a factor other than itself and 1; as following;

For ${\displaystyle N\in Z^{+}}$;
${\displaystyle a_{i}}$ ${\displaystyle i^{th}}$ row value, ${\displaystyle b_{j}}$ ${\displaystyle j^{th}}$ column value which ${\displaystyle i,j=1,2,3,\dots N.}$
${\displaystyle a_{i},b_{j}=1,2,3,\dots N.}$
${\displaystyle x_{ij}=a_{i}*b_{j}}$

Sets consists of ${\displaystyle x_{ij}}$'s are;

${\displaystyle A=\{x_{ij};\quad i,j\in Z^{+}\}}$
${\displaystyle B=\{x_{ij};\quad i,j\in Z^{+}-\{1\}\}}$

Thus;

${\displaystyle A=\{u_{1},u_{2},u_{3},\dots \}}$
${\displaystyle B=\{v_{1},v_{2},v_{3},\dots \}}$

P shows prime numbers' set,

${\displaystyle P=A-B-\{1\}}$

Some features of sets are like below,

${\displaystyle s(A)>s(B).}$
${\displaystyle B\subset A.}$
${\displaystyle A=B\cup P\cup \{1\}.}$

Set A consists of positive integers starting from 1, set B consists of positive integers greater than 1. Separately multiplying their own members with their own thus getting a new pair of sets. The difference of the new sets is the set of almost prime numbers. 1 is not a member of the prime numbers' set, prime numbers' set could be obtained by substracting 1 from latest found set. If it's desired a N value could be selected by that prime numbers' set can be obtained within the range of 1 to N --Nexusiot (talk) 20:46, 2 June 2016 (UTC) Comment : "Please add this new feature" --Nexusiot (talk) 20:46, 2 June 2016 (UTC)

Nexusiot (talk) 20:46, 2 June 2016 (UTC)

Not done: For several reasons.
1. Your account will be autoconfirmed in about 3 days, at which time, you will be able to make the edit.
2. This request is unclear exactly what needs to be changed or added. It would be easier to process this if you wrote this in a "Change X to Y" format. — Andy W. (talk ·ctb) 21:34, 2 June 2016 (UTC)

## Prime number formula

All prime numbers have to follow this formula is: 6n±1 — Preceding unsigned comment added by 212.253.111.210 (talk) 00:33, 5 October 2016 (UTC)

Best regards Nedim ERDAN — Preceding unsigned comment added by 212.253.111.210 (talk) 00:36, 5 October 2016 (UTC)

2 and 3 don't. Numbers of form 6n±1 is the same as numbers not divisible by 2 or 3 so it clearly includes all primes above 3. PrimeHunter (talk) 00:52, 5 October 2016 (UTC)
This was discussed here in the talk page archive.--♦IanMacM♦ (talk to me) 15:38, 19 October 2016 (UTC)

## 101

In the list of prime number you have 101 as a prime number, this is incorrect. — Preceding unsigned comment added by Theisencouple (talkcontribs)

101 is certainly a prime. See OEIS:A000040 or test it yourself. PrimeHunter (talk) 18:33, 19 November 2016 (UTC)